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Finding the Fourth Proportional to 251,215.59, 346,677.44 and 138,045.63

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Solution

The fourth proportional to 251,215.59, 346,677.44 and 138,045.63 is: 190,502.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,215.59 : 346,677.44 = 138,045.63 : x
  2. Step 2: Convert to fraction form
    251,215.59/346,677.44 = 138,045.63/x
  3. Step 3: Cross multiply
    251,215.59x = 346,677.44 × 138,045.63
  4. Step 4: Simplify right side
    251,215.59x = 47,857,304,921.36
  5. Step 5: Solve for x
    x = 47,857,304,921.36/251,215.59
  6. Step 6: Final answer
    x = 190,502.93

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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.