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Finding the Fourth Proportional to 457,152.80, 685,750.80 and 141,830.60

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Solution

The fourth proportional to 457,152.80, 685,750.80 and 141,830.60 is: 212,752.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,152.80 : 685,750.80 = 141,830.60 : x
  2. Step 2: Convert to fraction form
    457,152.80/685,750.80 = 141,830.60/x
  3. Step 3: Cross multiply
    457,152.80x = 685,750.80 × 141,830.60
  4. Step 4: Simplify right side
    457,152.80x = 97,260,447,414.48
  5. Step 5: Solve for x
    x = 97,260,447,414.48/457,152.80
  6. Step 6: Final answer
    x = 212,752.60

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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.