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Finding the Fourth Proportional to 222,001.60, 333,002.40 and 128,689.60

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Solution

The fourth proportional to 222,001.60, 333,002.40 and 128,689.60 is: 193,034.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,001.60 : 333,002.40 = 128,689.60 : x
  2. Step 2: Convert to fraction form
    222,001.60/333,002.40 = 128,689.60/x
  3. Step 3: Cross multiply
    222,001.60x = 333,002.40 × 128,689.60
  4. Step 4: Simplify right side
    222,001.60x = 42,853,945,655.04
  5. Step 5: Solve for x
    x = 42,853,945,655.04/222,001.60
  6. Step 6: Final answer
    x = 193,034.40

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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.