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Finding the Fourth Proportional to 342,304.32, 513,505.68 and 105,667.26

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Solution

The fourth proportional to 342,304.32, 513,505.68 and 105,667.26 is: 158,516.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,304.32 : 513,505.68 = 105,667.26 : x
  2. Step 2: Convert to fraction form
    342,304.32/513,505.68 = 105,667.26/x
  3. Step 3: Cross multiply
    342,304.32x = 513,505.68 × 105,667.26
  4. Step 4: Simplify right side
    342,304.32x = 54,260,738,200.04
  5. Step 5: Solve for x
    x = 54,260,738,200.04/342,304.32
  6. Step 6: Final answer
    x = 158,516.08

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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.