Home / 251,848.33-347,553-138,675.13

Finding the Fourth Proportional to 251,848.33, 347,553 and 138,675.13

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Solution

The fourth proportional to 251,848.33, 347,553 and 138,675.13 is: 191,372.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,848.33 : 347,553 = 138,675.13 : x
  2. Step 2: Convert to fraction form
    251,848.33/347,553 = 138,675.13/x
  3. Step 3: Cross multiply
    251,848.33x = 347,553 × 138,675.13
  4. Step 4: Simplify right side
    251,848.33x = 48,196,957,456.89
  5. Step 5: Solve for x
    x = 48,196,957,456.89/251,848.33
  6. Step 6: Final answer
    x = 191,372.95

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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.