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Finding the Fourth Proportional to 238,703.13, 358,035.66 and 138,799.62

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Solution

The fourth proportional to 238,703.13, 358,035.66 and 138,799.62 is: 208,188.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,703.13 : 358,035.66 = 138,799.62 : x
  2. Step 2: Convert to fraction form
    238,703.13/358,035.66 = 138,799.62/x
  3. Step 3: Cross multiply
    238,703.13x = 358,035.66 × 138,799.62
  4. Step 4: Simplify right side
    238,703.13x = 49,695,213,554.45
  5. Step 5: Solve for x
    x = 49,695,213,554.45/238,703.13
  6. Step 6: Final answer
    x = 208,188.36

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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.