Home / 251,686.11-347,248.65-142,772.49

Finding the Fourth Proportional to 251,686.11, 347,248.65 and 142,772.49

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Solution

The fourth proportional to 251,686.11, 347,248.65 and 142,772.49 is: 196,981.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,686.11 : 347,248.65 = 142,772.49 : x
  2. Step 2: Convert to fraction form
    251,686.11/347,248.65 = 142,772.49/x
  3. Step 3: Cross multiply
    251,686.11x = 347,248.65 × 142,772.49
  4. Step 4: Simplify right side
    251,686.11x = 49,577,554,409.64
  5. Step 5: Solve for x
    x = 49,577,554,409.64/251,686.11
  6. Step 6: Final answer
    x = 196,981.69

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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.