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Finding the Fourth Proportional to 247,859.05, 342,047.66 and 134,681.80

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Solution

The fourth proportional to 247,859.05, 342,047.66 and 134,681.80 is: 185,862.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,859.05 : 342,047.66 = 134,681.80 : x
  2. Step 2: Convert to fraction form
    247,859.05/342,047.66 = 134,681.80/x
  3. Step 3: Cross multiply
    247,859.05x = 342,047.66 × 134,681.80
  4. Step 4: Simplify right side
    247,859.05x = 46,067,594,534.59
  5. Step 5: Solve for x
    x = 46,067,594,534.59/247,859.05
  6. Step 6: Final answer
    x = 185,862.06

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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.