Home / 284,108.64-392,079.34-155,054.18

Finding the Fourth Proportional to 284,108.64, 392,079.34 and 155,054.18

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Solution

The fourth proportional to 284,108.64, 392,079.34 and 155,054.18 is: 213,979.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,108.64 : 392,079.34 = 155,054.18 : x
  2. Step 2: Convert to fraction form
    284,108.64/392,079.34 = 155,054.18/x
  3. Step 3: Cross multiply
    284,108.64x = 392,079.34 × 155,054.18
  4. Step 4: Simplify right side
    284,108.64x = 60,793,540,558.64
  5. Step 5: Solve for x
    x = 60,793,540,558.64/284,108.64
  6. Step 6: Final answer
    x = 213,979.91

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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.