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Finding the Fourth Proportional to 611,337.60, 917,046.90 and 162,052.20

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Solution

The fourth proportional to 611,337.60, 917,046.90 and 162,052.20 is: 243,089.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,337.60 : 917,046.90 = 162,052.20 : x
  2. Step 2: Convert to fraction form
    611,337.60/917,046.90 = 162,052.20/x
  3. Step 3: Cross multiply
    611,337.60x = 917,046.90 × 162,052.20
  4. Step 4: Simplify right side
    611,337.60x = 148,609,467,648.18
  5. Step 5: Solve for x
    x = 148,609,467,648.18/611,337.60
  6. Step 6: Final answer
    x = 243,089.04

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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.