Home / 371,407.28-557,105.45-90,924.53

Finding the Fourth Proportional to 371,407.28, 557,105.45 and 90,924.53

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Solution

The fourth proportional to 371,407.28, 557,105.45 and 90,924.53 is: 136,385.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,407.28 : 557,105.45 = 90,924.53 : x
  2. Step 2: Convert to fraction form
    371,407.28/557,105.45 = 90,924.53/x
  3. Step 3: Cross multiply
    371,407.28x = 557,105.45 × 90,924.53
  4. Step 4: Simplify right side
    371,407.28x = 50,654,547,961.54
  5. Step 5: Solve for x
    x = 50,654,547,961.54/371,407.28
  6. Step 6: Final answer
    x = 136,385.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.