Home / 284,516.20-392,643.75-163,657.45

Finding the Fourth Proportional to 284,516.20, 392,643.75 and 163,657.45

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Solution

The fourth proportional to 284,516.20, 392,643.75 and 163,657.45 is: 225,853.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,516.20 : 392,643.75 = 163,657.45 : x
  2. Step 2: Convert to fraction form
    284,516.20/392,643.75 = 163,657.45/x
  3. Step 3: Cross multiply
    284,516.20x = 392,643.75 × 163,657.45
  4. Step 4: Simplify right side
    284,516.20x = 64,259,074,883.44
  5. Step 5: Solve for x
    x = 64,259,074,883.44/284,516.20
  6. Step 6: Final answer
    x = 225,853.83

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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.