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Finding the Fourth Proportional to 343,980.28, 516,169.68 and 144,282.88

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Solution

The fourth proportional to 343,980.28, 516,169.68 and 144,282.88 is: 216,507.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,980.28 : 516,169.68 = 144,282.88 : x
  2. Step 2: Convert to fraction form
    343,980.28/516,169.68 = 144,282.88/x
  3. Step 3: Cross multiply
    343,980.28x = 516,169.68 × 144,282.88
  4. Step 4: Simplify right side
    343,980.28x = 74,474,447,999.08
  5. Step 5: Solve for x
    x = 74,474,447,999.08/343,980.28
  6. Step 6: Final answer
    x = 216,507.90

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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.