Home / 283,053.20-390,614.12-155,736.72

Finding the Fourth Proportional to 283,053.20, 390,614.12 and 155,736.72

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Solution

The fourth proportional to 283,053.20, 390,614.12 and 155,736.72 is: 214,917.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,053.20 : 390,614.12 = 155,736.72 : x
  2. Step 2: Convert to fraction form
    283,053.20/390,614.12 = 155,736.72/x
  3. Step 3: Cross multiply
    283,053.20x = 390,614.12 × 155,736.72
  4. Step 4: Simplify right side
    283,053.20x = 60,832,961,834.49
  5. Step 5: Solve for x
    x = 60,832,961,834.49/283,053.20
  6. Step 6: Final answer
    x = 214,917.06

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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.