Home / 386,688.46-533,694.21-225,543.50

Finding the Fourth Proportional to 386,688.46, 533,694.21 and 225,543.50

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Solution

The fourth proportional to 386,688.46, 533,694.21 and 225,543.50 is: 311,287.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,688.46 : 533,694.21 = 225,543.50 : x
  2. Step 2: Convert to fraction form
    386,688.46/533,694.21 = 225,543.50/x
  3. Step 3: Cross multiply
    386,688.46x = 533,694.21 × 225,543.50
  4. Step 4: Simplify right side
    386,688.46x = 120,371,262,652.36
  5. Step 5: Solve for x
    x = 120,371,262,652.36/386,688.46
  6. Step 6: Final answer
    x = 311,287.44

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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.