Home / 386,964.18-533,981.27-217,165.50

Finding the Fourth Proportional to 386,964.18, 533,981.27 and 217,165.50

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Solution

The fourth proportional to 386,964.18, 533,981.27 and 217,165.50 is: 299,671.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,964.18 : 533,981.27 = 217,165.50 : x
  2. Step 2: Convert to fraction form
    386,964.18/533,981.27 = 217,165.50/x
  3. Step 3: Cross multiply
    386,964.18x = 533,981.27 × 217,165.50
  4. Step 4: Simplify right side
    386,964.18x = 115,962,310,033.10
  5. Step 5: Solve for x
    x = 115,962,310,033.10/386,964.18
  6. Step 6: Final answer
    x = 299,671.95

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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.