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Finding the Fourth Proportional to 284,430.40, 392,512.98 and 163,565.98

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Solution

The fourth proportional to 284,430.40, 392,512.98 and 163,565.98 is: 225,720.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,430.40 : 392,512.98 = 163,565.98 : x
  2. Step 2: Convert to fraction form
    284,430.40/392,512.98 = 163,565.98/x
  3. Step 3: Cross multiply
    284,430.40x = 392,512.98 × 163,565.98
  4. Step 4: Simplify right side
    284,430.40x = 64,201,770,236.42
  5. Step 5: Solve for x
    x = 64,201,770,236.42/284,430.40
  6. Step 6: Final answer
    x = 225,720.49

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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.