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Finding the Fourth Proportional to 295,754,054.33, 406,003,364.40 and 253,865,397.21

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Solution

The fourth proportional to 295,754,054.33, 406,003,364.40 and 253,865,397.21 is: 348,499,720.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,754,054.33 : 406,003,364.40 = 253,865,397.21 : x
  2. Step 2: Convert to fraction form
    295,754,054.33/406,003,364.40 = 253,865,397.21/x
  3. Step 3: Cross multiply
    295,754,054.33x = 406,003,364.40 × 253,865,397.21
  4. Step 4: Simplify right side
    295,754,054.33x = 103,070,205,372,002,368
  5. Step 5: Solve for x
    x = 103,070,205,372,002,368/295,754,054.33
  6. Step 6: Final answer
    x = 348,499,720.85

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.