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Finding the Fourth Proportional to 499,356.40, 749,034.60 and 166,889.20

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Solution

The fourth proportional to 499,356.40, 749,034.60 and 166,889.20 is: 250,333.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,356.40 : 749,034.60 = 166,889.20 : x
  2. Step 2: Convert to fraction form
    499,356.40/749,034.60 = 166,889.20/x
  3. Step 3: Cross multiply
    499,356.40x = 749,034.60 × 166,889.20
  4. Step 4: Simplify right side
    499,356.40x = 125,005,785,166.32
  5. Step 5: Solve for x
    x = 125,005,785,166.32/499,356.40
  6. Step 6: Final answer
    x = 250,333.80

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1.5x scale

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.