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Finding the Fourth Proportional to 250,642.72, 345,888.66 and 137,466.28

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Solution

The fourth proportional to 250,642.72, 345,888.66 and 137,466.28 is: 189,704.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,642.72 : 345,888.66 = 137,466.28 : x
  2. Step 2: Convert to fraction form
    250,642.72/345,888.66 = 137,466.28/x
  3. Step 3: Cross multiply
    250,642.72x = 345,888.66 × 137,466.28
  4. Step 4: Simplify right side
    250,642.72x = 47,548,027,384.38
  5. Step 5: Solve for x
    x = 47,548,027,384.38/250,642.72
  6. Step 6: Final answer
    x = 189,704.40

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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.