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Finding the Fourth Proportional to 361,412.04, 498,585.06 and 218,126.28

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Solution

The fourth proportional to 361,412.04, 498,585.06 and 218,126.28 is: 300,915.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,412.04 : 498,585.06 = 218,126.28 : x
  2. Step 2: Convert to fraction form
    361,412.04/498,585.06 = 218,126.28/x
  3. Step 3: Cross multiply
    361,412.04x = 498,585.06 × 218,126.28
  4. Step 4: Simplify right side
    361,412.04x = 108,754,504,401.38
  5. Step 5: Solve for x
    x = 108,754,504,401.38/361,412.04
  6. Step 6: Final answer
    x = 300,915.55

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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.