Home / 348,904.60-523,356.90-86,248.60

Finding the Fourth Proportional to 348,904.60, 523,356.90 and 86,248.60

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Solution

The fourth proportional to 348,904.60, 523,356.90 and 86,248.60 is: 129,372.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,904.60 : 523,356.90 = 86,248.60 : x
  2. Step 2: Convert to fraction form
    348,904.60/523,356.90 = 86,248.60/x
  3. Step 3: Cross multiply
    348,904.60x = 523,356.90 × 86,248.60
  4. Step 4: Simplify right side
    348,904.60x = 45,138,799,925.34
  5. Step 5: Solve for x
    x = 45,138,799,925.34/348,904.60
  6. Step 6: Final answer
    x = 129,372.90

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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.