Home / 389,324.48-537,141.98-217,214.56

Finding the Fourth Proportional to 389,324.48, 537,141.98 and 217,214.56

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Solution

The fourth proportional to 389,324.48, 537,141.98 and 217,214.56 is: 299,685.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,324.48 : 537,141.98 = 217,214.56 : x
  2. Step 2: Convert to fraction form
    389,324.48/537,141.98 = 217,214.56/x
  3. Step 3: Cross multiply
    389,324.48x = 537,141.98 × 217,214.56
  4. Step 4: Simplify right side
    389,324.48x = 116,675,060,057.69
  5. Step 5: Solve for x
    x = 116,675,060,057.69/389,324.48
  6. Step 6: Final answer
    x = 299,685.91

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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.