Home / 284,521.61-392,516.47-171,278.75

Finding the Fourth Proportional to 284,521.61, 392,516.47 and 171,278.75

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Solution

The fourth proportional to 284,521.61, 392,516.47 and 171,278.75 is: 236,290.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,521.61 : 392,516.47 = 171,278.75 : x
  2. Step 2: Convert to fraction form
    284,521.61/392,516.47 = 171,278.75/x
  3. Step 3: Cross multiply
    284,521.61x = 392,516.47 × 171,278.75
  4. Step 4: Simplify right side
    284,521.61x = 67,229,730,336.01
  5. Step 5: Solve for x
    x = 67,229,730,336.01/284,521.61
  6. Step 6: Final answer
    x = 236,290.42

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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.