Home / 284,289.78-392,326.02-156,973.44

Finding the Fourth Proportional to 284,289.78, 392,326.02 and 156,973.44

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Solution

The fourth proportional to 284,289.78, 392,326.02 and 156,973.44 is: 216,626.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,289.78 : 392,326.02 = 156,973.44 : x
  2. Step 2: Convert to fraction form
    284,289.78/392,326.02 = 156,973.44/x
  3. Step 3: Cross multiply
    284,289.78x = 392,326.02 × 156,973.44
  4. Step 4: Simplify right side
    284,289.78x = 61,584,764,960.91
  5. Step 5: Solve for x
    x = 61,584,764,960.91/284,289.78
  6. Step 6: Final answer
    x = 216,626.73

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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.