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Finding the Fourth Proportional to 268,070.30, 370,020.06 and 172,577

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Solution

The fourth proportional to 268,070.30, 370,020.06 and 172,577 is: 238,209.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,070.30 : 370,020.06 = 172,577 : x
  2. Step 2: Convert to fraction form
    268,070.30/370,020.06 = 172,577/x
  3. Step 3: Cross multiply
    268,070.30x = 370,020.06 × 172,577
  4. Step 4: Simplify right side
    268,070.30x = 63,856,951,894.62
  5. Step 5: Solve for x
    x = 63,856,951,894.62/268,070.30
  6. Step 6: Final answer
    x = 238,209.72

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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.