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Finding the Fourth Proportional to 360,065.76, 539,764.78 and 123,352.20

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Solution

The fourth proportional to 360,065.76, 539,764.78 and 123,352.20 is: 184,913.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,065.76 : 539,764.78 = 123,352.20 : x
  2. Step 2: Convert to fraction form
    360,065.76/539,764.78 = 123,352.20/x
  3. Step 3: Cross multiply
    360,065.76x = 539,764.78 × 123,352.20
  4. Step 4: Simplify right side
    360,065.76x = 66,581,173,095.52
  5. Step 5: Solve for x
    x = 66,581,173,095.52/360,065.76
  6. Step 6: Final answer
    x = 184,913.93

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1.5x scale

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.