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Finding the Fourth Proportional to 340,377.80, 469,717.48 and 187,412.79

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Solution

The fourth proportional to 340,377.80, 469,717.48 and 187,412.79 is: 258,627.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,377.80 : 469,717.48 = 187,412.79 : x
  2. Step 2: Convert to fraction form
    340,377.80/469,717.48 = 187,412.79/x
  3. Step 3: Cross multiply
    340,377.80x = 469,717.48 × 187,412.79
  4. Step 4: Simplify right side
    340,377.80x = 88,031,062,792.11
  5. Step 5: Solve for x
    x = 88,031,062,792.11/340,377.80
  6. Step 6: Final answer
    x = 258,627.51

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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.