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Finding the Fourth Proportional to 424,159.22, 636,071.43 and 171,392.06

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Solution

The fourth proportional to 424,159.22, 636,071.43 and 171,392.06 is: 257,020.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,159.22 : 636,071.43 = 171,392.06 : x
  2. Step 2: Convert to fraction form
    424,159.22/636,071.43 = 171,392.06/x
  3. Step 3: Cross multiply
    424,159.22x = 636,071.43 × 171,392.06
  4. Step 4: Simplify right side
    424,159.22x = 109,017,592,694.85
  5. Step 5: Solve for x
    x = 109,017,592,694.85/424,159.22
  6. Step 6: Final answer
    x = 257,020.45

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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.