Home / 389,363.24-537,320.27-217,279.38

Finding the Fourth Proportional to 389,363.24, 537,320.27 and 217,279.38

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Solution

The fourth proportional to 389,363.24, 537,320.27 and 217,279.38 is: 299,844.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,363.24 : 537,320.27 = 217,279.38 : x
  2. Step 2: Convert to fraction form
    389,363.24/537,320.27 = 217,279.38/x
  3. Step 3: Cross multiply
    389,363.24x = 537,320.27 × 217,279.38
  4. Step 4: Simplify right side
    389,363.24x = 116,748,612,440.43
  5. Step 5: Solve for x
    x = 116,748,612,440.43/389,363.24
  6. Step 6: Final answer
    x = 299,844.98

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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.