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Finding the Fourth Proportional to 253,026.65, 349,176.47 and 138,306.03

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Solution

The fourth proportional to 253,026.65, 349,176.47 and 138,306.03 is: 190,862.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,026.65 : 349,176.47 = 138,306.03 : x
  2. Step 2: Convert to fraction form
    253,026.65/349,176.47 = 138,306.03/x
  3. Step 3: Cross multiply
    253,026.65x = 349,176.47 × 138,306.03
  4. Step 4: Simplify right side
    253,026.65x = 48,293,210,643.58
  5. Step 5: Solve for x
    x = 48,293,210,643.58/253,026.65
  6. Step 6: Final answer
    x = 190,862.15

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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.