Home / 217,614.39-300,337.18-122,126.32

Finding the Fourth Proportional to 217,614.39, 300,337.18 and 122,126.32

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Solution

The fourth proportional to 217,614.39, 300,337.18 and 122,126.32 is: 168,550.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,614.39 : 300,337.18 = 122,126.32 : x
  2. Step 2: Convert to fraction form
    217,614.39/300,337.18 = 122,126.32/x
  3. Step 3: Cross multiply
    217,614.39x = 300,337.18 × 122,126.32
  4. Step 4: Simplify right side
    217,614.39x = 36,679,075,309.64
  5. Step 5: Solve for x
    x = 36,679,075,309.64/217,614.39
  6. Step 6: Final answer
    x = 168,550.78

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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.