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Finding the Fourth Proportional to 255,506.96, 352,599.54 and 140,787.20

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Solution

The fourth proportional to 255,506.96, 352,599.54 and 140,787.20 is: 194,286.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,506.96 : 352,599.54 = 140,787.20 : x
  2. Step 2: Convert to fraction form
    255,506.96/352,599.54 = 140,787.20/x
  3. Step 3: Cross multiply
    255,506.96x = 352,599.54 × 140,787.20
  4. Step 4: Simplify right side
    255,506.96x = 49,641,501,957.89
  5. Step 5: Solve for x
    x = 49,641,501,957.89/255,506.96
  6. Step 6: Final answer
    x = 194,286.30

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1.5x scale

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.