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Finding the Fourth Proportional to 406,176.88, 560,586 and 253,239.88

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Solution

The fourth proportional to 406,176.88, 560,586 and 253,239.88 is: 349,509.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,176.88 : 560,586 = 253,239.88 : x
  2. Step 2: Convert to fraction form
    406,176.88/560,586 = 253,239.88/x
  3. Step 3: Cross multiply
    406,176.88x = 560,586 × 253,239.88
  4. Step 4: Simplify right side
    406,176.88x = 141,962,731,369.68
  5. Step 5: Solve for x
    x = 141,962,731,369.68/406,176.88
  6. Step 6: Final answer
    x = 349,509.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.