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Finding the Fourth Proportional to 455,086.13, 628,019.13 and 253,882.13

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Solution

The fourth proportional to 455,086.13, 628,019.13 and 253,882.13 is: 350,357.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,086.13 : 628,019.13 = 253,882.13 : x
  2. Step 2: Convert to fraction form
    455,086.13/628,019.13 = 253,882.13/x
  3. Step 3: Cross multiply
    455,086.13x = 628,019.13 × 253,882.13
  4. Step 4: Simplify right side
    455,086.13x = 159,442,831,265.05
  5. Step 5: Solve for x
    x = 159,442,831,265.05/455,086.13
  6. Step 6: Final answer
    x = 350,357.49

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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.