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Finding the Fourth Proportional to 330,802.72, 456,498 and 187,575.84

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Solution

The fourth proportional to 330,802.72, 456,498 and 187,575.84 is: 258,849.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,802.72 : 456,498 = 187,575.84 : x
  2. Step 2: Convert to fraction form
    330,802.72/456,498 = 187,575.84/x
  3. Step 3: Cross multiply
    330,802.72x = 456,498 × 187,575.84
  4. Step 4: Simplify right side
    330,802.72x = 85,627,995,808.32
  5. Step 5: Solve for x
    x = 85,627,995,808.32/330,802.72
  6. Step 6: Final answer
    x = 258,849.13

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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.