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Finding the Fourth Proportional to 284,395.92, 426,681.90 and 170,670.72

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Solution

The fourth proportional to 284,395.92, 426,681.90 and 170,670.72 is: 256,058.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,395.92 : 426,681.90 = 170,670.72 : x
  2. Step 2: Convert to fraction form
    284,395.92/426,681.90 = 170,670.72/x
  3. Step 3: Cross multiply
    284,395.92x = 426,681.90 × 170,670.72
  4. Step 4: Simplify right side
    284,395.92x = 72,822,107,083.97
  5. Step 5: Solve for x
    x = 72,822,107,083.97/284,395.92
  6. Step 6: Final answer
    x = 256,058.90

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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.