Home / 255,748.12-383,732.80-137,281.12

Finding the Fourth Proportional to 255,748.12, 383,732.80 and 137,281.12

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Solution

The fourth proportional to 255,748.12, 383,732.80 and 137,281.12 is: 205,981.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,748.12 : 383,732.80 = 137,281.12 : x
  2. Step 2: Convert to fraction form
    255,748.12/383,732.80 = 137,281.12/x
  3. Step 3: Cross multiply
    255,748.12x = 383,732.80 × 137,281.12
  4. Step 4: Simplify right side
    255,748.12x = 52,679,268,564.74
  5. Step 5: Solve for x
    x = 52,679,268,564.74/255,748.12
  6. Step 6: Final answer
    x = 205,981.06

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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.