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Finding the Fourth Proportional to 421,637.13, 631,442.12 and 241,175.61

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Solution

The fourth proportional to 421,637.13, 631,442.12 and 241,175.61 is: 361,183.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,637.13 : 631,442.12 = 241,175.61 : x
  2. Step 2: Convert to fraction form
    421,637.13/631,442.12 = 241,175.61/x
  3. Step 3: Cross multiply
    421,637.13x = 631,442.12 × 241,175.61
  4. Step 4: Simplify right side
    421,637.13x = 152,288,437,264.82
  5. Step 5: Solve for x
    x = 152,288,437,264.82/421,637.13
  6. Step 6: Final answer
    x = 361,183.65

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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.