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Finding the Fourth Proportional to 343,458, 473,810.76 and 242,911.44

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Solution

The fourth proportional to 343,458, 473,810.76 and 242,911.44 is: 335,103.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,458 : 473,810.76 = 242,911.44 : x
  2. Step 2: Convert to fraction form
    343,458/473,810.76 = 242,911.44/x
  3. Step 3: Cross multiply
    343,458x = 473,810.76 × 242,911.44
  4. Step 4: Simplify right side
    343,458x = 115,094,053,999.09
  5. Step 5: Solve for x
    x = 115,094,053,999.09/343,458
  6. Step 6: Final answer
    x = 335,103.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.