Home / 284,285.02-392,310.66-156,961.54

Finding the Fourth Proportional to 284,285.02, 392,310.66 and 156,961.54

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Solution

The fourth proportional to 284,285.02, 392,310.66 and 156,961.54 is: 216,605.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,285.02 : 392,310.66 = 156,961.54 : x
  2. Step 2: Convert to fraction form
    284,285.02/392,310.66 = 156,961.54/x
  3. Step 3: Cross multiply
    284,285.02x = 392,310.66 × 156,961.54
  4. Step 4: Simplify right side
    284,285.02x = 61,577,685,352.02
  5. Step 5: Solve for x
    x = 61,577,685,352.02/284,285.02
  6. Step 6: Final answer
    x = 216,605.45

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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.