Home / 283,178.03-390,774.17-155,854.13

Finding the Fourth Proportional to 283,178.03, 390,774.17 and 155,854.13

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Solution

The fourth proportional to 283,178.03, 390,774.17 and 155,854.13 is: 215,072.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,178.03 : 390,774.17 = 155,854.13 : x
  2. Step 2: Convert to fraction form
    283,178.03/390,774.17 = 155,854.13/x
  3. Step 3: Cross multiply
    283,178.03x = 390,774.17 × 155,854.13
  4. Step 4: Simplify right side
    283,178.03x = 60,903,766,727.59
  5. Step 5: Solve for x
    x = 60,903,766,727.59/283,178.03
  6. Step 6: Final answer
    x = 215,072.36

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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.