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Finding the Fourth Proportional to 360,060.09, 539,711.03 and 120,109.74

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Solution

The fourth proportional to 360,060.09, 539,711.03 and 120,109.74 is: 180,038.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,060.09 : 539,711.03 = 120,109.74 : x
  2. Step 2: Convert to fraction form
    360,060.09/539,711.03 = 120,109.74/x
  3. Step 3: Cross multiply
    360,060.09x = 539,711.03 × 120,109.74
  4. Step 4: Simplify right side
    360,060.09x = 64,824,551,788.71
  5. Step 5: Solve for x
    x = 64,824,551,788.71/360,060.09
  6. Step 6: Final answer
    x = 180,038.15

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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.