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Finding the Fourth Proportional to 355,590.60, 533,385.90 and 89,359.80

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Solution

The fourth proportional to 355,590.60, 533,385.90 and 89,359.80 is: 134,039.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,590.60 : 533,385.90 = 89,359.80 : x
  2. Step 2: Convert to fraction form
    355,590.60/533,385.90 = 89,359.80/x
  3. Step 3: Cross multiply
    355,590.60x = 533,385.90 × 89,359.80
  4. Step 4: Simplify right side
    355,590.60x = 47,663,257,346.82
  5. Step 5: Solve for x
    x = 47,663,257,346.82/355,590.60
  6. Step 6: Final answer
    x = 134,039.70

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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.