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Finding the Fourth Proportional to 329,159.55, 493,862.35 and 129,619.04

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Solution

The fourth proportional to 329,159.55, 493,862.35 and 129,619.04 is: 194,477.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,159.55 : 493,862.35 = 129,619.04 : x
  2. Step 2: Convert to fraction form
    329,159.55/493,862.35 = 129,619.04/x
  3. Step 3: Cross multiply
    329,159.55x = 493,862.35 × 129,619.04
  4. Step 4: Simplify right side
    329,159.55x = 64,013,963,699.14
  5. Step 5: Solve for x
    x = 64,013,963,699.14/329,159.55
  6. Step 6: Final answer
    x = 194,477.01

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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.