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Finding the Fourth Proportional to 255,077.16, 382,442.58 and 142,834.56

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Solution

The fourth proportional to 255,077.16, 382,442.58 and 142,834.56 is: 214,154.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,077.16 : 382,442.58 = 142,834.56 : x
  2. Step 2: Convert to fraction form
    255,077.16/382,442.58 = 142,834.56/x
  3. Step 3: Cross multiply
    255,077.16x = 382,442.58 × 142,834.56
  4. Step 4: Simplify right side
    255,077.16x = 54,626,017,639.56
  5. Step 5: Solve for x
    x = 54,626,017,639.56/255,077.16
  6. Step 6: Final answer
    x = 214,154.88

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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.