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Finding the Fourth Proportional to 284,875.52, 393,177.52 and 171,698.40

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Solution

The fourth proportional to 284,875.52, 393,177.52 and 171,698.40 is: 236,973.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,875.52 : 393,177.52 = 171,698.40 : x
  2. Step 2: Convert to fraction form
    284,875.52/393,177.52 = 171,698.40/x
  3. Step 3: Cross multiply
    284,875.52x = 393,177.52 × 171,698.40
  4. Step 4: Simplify right side
    284,875.52x = 67,507,951,099.97
  5. Step 5: Solve for x
    x = 67,507,951,099.97/284,875.52
  6. Step 6: Final answer
    x = 236,973.51

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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.