Home / 251,848.32-347,553-138,675.12

Finding the Fourth Proportional to 251,848.32, 347,553 and 138,675.12

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Solution

The fourth proportional to 251,848.32, 347,553 and 138,675.12 is: 191,372.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,848.32 : 347,553 = 138,675.12 : x
  2. Step 2: Convert to fraction form
    251,848.32/347,553 = 138,675.12/x
  3. Step 3: Cross multiply
    251,848.32x = 347,553 × 138,675.12
  4. Step 4: Simplify right side
    251,848.32x = 48,196,953,981.36
  5. Step 5: Solve for x
    x = 48,196,953,981.36/251,848.32
  6. Step 6: Final answer
    x = 191,372.94

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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.