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Finding the Fourth Proportional to 359,580.30, 539,953.65 and 260,436.30

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Solution

The fourth proportional to 359,580.30, 539,953.65 and 260,436.30 is: 391,076.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,580.30 : 539,953.65 = 260,436.30 : x
  2. Step 2: Convert to fraction form
    359,580.30/539,953.65 = 260,436.30/x
  3. Step 3: Cross multiply
    359,580.30x = 539,953.65 × 260,436.30
  4. Step 4: Simplify right side
    359,580.30x = 140,623,530,777.50
  5. Step 5: Solve for x
    x = 140,623,530,777.50/359,580.30
  6. Step 6: Final answer
    x = 391,076.85

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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.