Home / 238,832.80-329,636.40-136,926.72

Finding the Fourth Proportional to 238,832.80, 329,636.40 and 136,926.72

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Solution

The fourth proportional to 238,832.80, 329,636.40 and 136,926.72 is: 188,985.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,832.80 : 329,636.40 = 136,926.72 : x
  2. Step 2: Convert to fraction form
    238,832.80/329,636.40 = 136,926.72/x
  3. Step 3: Cross multiply
    238,832.80x = 329,636.40 × 136,926.72
  4. Step 4: Simplify right side
    238,832.80x = 45,136,031,044.61
  5. Step 5: Solve for x
    x = 45,136,031,044.61/238,832.80
  6. Step 6: Final answer
    x = 188,985.90

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1.5x scale

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.