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Finding the Fourth Proportional to 331,570, 497,617.08 and 144,712.72

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Solution

The fourth proportional to 331,570, 497,617.08 and 144,712.72 is: 217,183.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,570 : 497,617.08 = 144,712.72 : x
  2. Step 2: Convert to fraction form
    331,570/497,617.08 = 144,712.72/x
  3. Step 3: Cross multiply
    331,570x = 497,617.08 × 144,712.72
  4. Step 4: Simplify right side
    331,570x = 72,011,521,165.26
  5. Step 5: Solve for x
    x = 72,011,521,165.26/331,570
  6. Step 6: Final answer
    x = 217,183.46

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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.