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Finding the Fourth Proportional to 335,810.40, 503,715.60 and 99,152.70

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Solution

The fourth proportional to 335,810.40, 503,715.60 and 99,152.70 is: 148,729.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,810.40 : 503,715.60 = 99,152.70 : x
  2. Step 2: Convert to fraction form
    335,810.40/503,715.60 = 99,152.70/x
  3. Step 3: Cross multiply
    335,810.40x = 503,715.60 × 99,152.70
  4. Step 4: Simplify right side
    335,810.40x = 49,944,761,772.12
  5. Step 5: Solve for x
    x = 49,944,761,772.12/335,810.40
  6. Step 6: Final answer
    x = 148,729.05

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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.