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Finding the Fourth Proportional to 487,322.53, 731,108.48 and 187,722.66

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Solution

The fourth proportional to 487,322.53, 731,108.48 and 187,722.66 is: 281,632.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,322.53 : 731,108.48 = 187,722.66 : x
  2. Step 2: Convert to fraction form
    487,322.53/731,108.48 = 187,722.66/x
  3. Step 3: Cross multiply
    487,322.53x = 731,108.48 × 187,722.66
  4. Step 4: Simplify right side
    487,322.53x = 137,245,631,473.14
  5. Step 5: Solve for x
    x = 137,245,631,473.14/487,322.53
  6. Step 6: Final answer
    x = 281,632.03

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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.