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Finding the Fourth Proportional to 291,518.60, 437,472.30 and 133,665.80

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Solution

The fourth proportional to 291,518.60, 437,472.30 and 133,665.80 is: 200,587.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,518.60 : 437,472.30 = 133,665.80 : x
  2. Step 2: Convert to fraction form
    291,518.60/437,472.30 = 133,665.80/x
  3. Step 3: Cross multiply
    291,518.60x = 437,472.30 × 133,665.80
  4. Step 4: Simplify right side
    291,518.60x = 58,475,084,957.34
  5. Step 5: Solve for x
    x = 58,475,084,957.34/291,518.60
  6. Step 6: Final answer
    x = 200,587.84

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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.