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Finding the Fourth Proportional to 157,802.40, 236,704.80 and 52,621.20

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Solution

The fourth proportional to 157,802.40, 236,704.80 and 52,621.20 is: 78,932.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,802.40 : 236,704.80 = 52,621.20 : x
  2. Step 2: Convert to fraction form
    157,802.40/236,704.80 = 52,621.20/x
  3. Step 3: Cross multiply
    157,802.40x = 236,704.80 × 52,621.20
  4. Step 4: Simplify right side
    157,802.40x = 12,455,690,621.76
  5. Step 5: Solve for x
    x = 12,455,690,621.76/157,802.40
  6. Step 6: Final answer
    x = 78,932.20

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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.