Home / 284,638.32-427,105.17-126,830.07

Finding the Fourth Proportional to 284,638.32, 427,105.17 and 126,830.07

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Solution

The fourth proportional to 284,638.32, 427,105.17 and 126,830.07 is: 190,310.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,638.32 : 427,105.17 = 126,830.07 : x
  2. Step 2: Convert to fraction form
    284,638.32/427,105.17 = 126,830.07/x
  3. Step 3: Cross multiply
    284,638.32x = 427,105.17 × 126,830.07
  4. Step 4: Simplify right side
    284,638.32x = 54,169,778,608.46
  5. Step 5: Solve for x
    x = 54,169,778,608.46/284,638.32
  6. Step 6: Final answer
    x = 190,310.91

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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.