Home / 283,088.72-390,652.68-155,752.40

Finding the Fourth Proportional to 283,088.72, 390,652.68 and 155,752.40

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Solution

The fourth proportional to 283,088.72, 390,652.68 and 155,752.40 is: 214,932.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,088.72 : 390,652.68 = 155,752.40 : x
  2. Step 2: Convert to fraction form
    283,088.72/390,652.68 = 155,752.40/x
  3. Step 3: Cross multiply
    283,088.72x = 390,652.68 × 155,752.40
  4. Step 4: Simplify right side
    283,088.72x = 60,845,092,476.43
  5. Step 5: Solve for x
    x = 60,845,092,476.43/283,088.72
  6. Step 6: Final answer
    x = 214,932.95

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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.