Home / 389,320.52-537,275.22-225,964.80

Finding the Fourth Proportional to 389,320.52, 537,275.22 and 225,964.80

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Solution

The fourth proportional to 389,320.52, 537,275.22 and 225,964.80 is: 311,838.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,320.52 : 537,275.22 = 225,964.80 : x
  2. Step 2: Convert to fraction form
    389,320.52/537,275.22 = 225,964.80/x
  3. Step 3: Cross multiply
    389,320.52x = 537,275.22 × 225,964.80
  4. Step 4: Simplify right side
    389,320.52x = 121,405,287,632.26
  5. Step 5: Solve for x
    x = 121,405,287,632.26/389,320.52
  6. Step 6: Final answer
    x = 311,838.91

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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.