Home / 282,657.80-423,934.40-128,747.49

Finding the Fourth Proportional to 282,657.80, 423,934.40 and 128,747.49

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Solution

The fourth proportional to 282,657.80, 423,934.40 and 128,747.49 is: 193,097.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,657.80 : 423,934.40 = 128,747.49 : x
  2. Step 2: Convert to fraction form
    282,657.80/423,934.40 = 128,747.49/x
  3. Step 3: Cross multiply
    282,657.80x = 423,934.40 × 128,747.49
  4. Step 4: Simplify right side
    282,657.80x = 54,580,489,280.92
  5. Step 5: Solve for x
    x = 54,580,489,280.92/282,657.80
  6. Step 6: Final answer
    x = 193,097.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.