Home / 257,280.14-386,052-122,496.74

Finding the Fourth Proportional to 257,280.14, 386,052 and 122,496.74

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Solution

The fourth proportional to 257,280.14, 386,052 and 122,496.74 is: 183,807.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,280.14 : 386,052 = 122,496.74 : x
  2. Step 2: Convert to fraction form
    257,280.14/386,052 = 122,496.74/x
  3. Step 3: Cross multiply
    257,280.14x = 386,052 × 122,496.74
  4. Step 4: Simplify right side
    257,280.14x = 47,290,111,470.48
  5. Step 5: Solve for x
    x = 47,290,111,470.48/257,280.14
  6. Step 6: Final answer
    x = 183,807.86

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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.