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Finding the Fourth Proportional to 330,291.95, 455,787.66 and 187,053.04

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Solution

The fourth proportional to 330,291.95, 455,787.66 and 187,053.04 is: 258,124.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,291.95 : 455,787.66 = 187,053.04 : x
  2. Step 2: Convert to fraction form
    330,291.95/455,787.66 = 187,053.04/x
  3. Step 3: Cross multiply
    330,291.95x = 455,787.66 × 187,053.04
  4. Step 4: Simplify right side
    330,291.95x = 85,256,465,118.55
  5. Step 5: Solve for x
    x = 85,256,465,118.55/330,291.95
  6. Step 6: Final answer
    x = 258,124.56

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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.