Home / 283,039.31-390,594.25-155,712.17

Finding the Fourth Proportional to 283,039.31, 390,594.25 and 155,712.17

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Solution

The fourth proportional to 283,039.31, 390,594.25 and 155,712.17 is: 214,882.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,039.31 : 390,594.25 = 155,712.17 : x
  2. Step 2: Convert to fraction form
    283,039.31/390,594.25 = 155,712.17/x
  3. Step 3: Cross multiply
    283,039.31x = 390,594.25 × 155,712.17
  4. Step 4: Simplify right side
    283,039.31x = 60,820,279,428.15
  5. Step 5: Solve for x
    x = 60,820,279,428.15/283,039.31
  6. Step 6: Final answer
    x = 214,882.80

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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.