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Finding the Fourth Proportional to 251,345.58, 346,848.12 and 138,167.52

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Solution

The fourth proportional to 251,345.58, 346,848.12 and 138,167.52 is: 190,666.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,345.58 : 346,848.12 = 138,167.52 : x
  2. Step 2: Convert to fraction form
    251,345.58/346,848.12 = 138,167.52/x
  3. Step 3: Cross multiply
    251,345.58x = 346,848.12 × 138,167.52
  4. Step 4: Simplify right side
    251,345.58x = 47,923,144,557.06
  5. Step 5: Solve for x
    x = 47,923,144,557.06/251,345.58
  6. Step 6: Final answer
    x = 190,666.35

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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.