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Finding the Fourth Proportional to 331,392.10, 497,233.95 and 153,807.70

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Solution

The fourth proportional to 331,392.10, 497,233.95 and 153,807.70 is: 230,779.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,392.10 : 497,233.95 = 153,807.70 : x
  2. Step 2: Convert to fraction form
    331,392.10/497,233.95 = 153,807.70/x
  3. Step 3: Cross multiply
    331,392.10x = 497,233.95 × 153,807.70
  4. Step 4: Simplify right side
    331,392.10x = 76,478,410,211.42
  5. Step 5: Solve for x
    x = 76,478,410,211.42/331,392.10
  6. Step 6: Final answer
    x = 230,779.22

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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.