Home / 386,387.55-533,228.67-225,216.59

Finding the Fourth Proportional to 386,387.55, 533,228.67 and 225,216.59

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Solution

The fourth proportional to 386,387.55, 533,228.67 and 225,216.59 is: 310,806.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,387.55 : 533,228.67 = 225,216.59 : x
  2. Step 2: Convert to fraction form
    386,387.55/533,228.67 = 225,216.59/x
  3. Step 3: Cross multiply
    386,387.55x = 533,228.67 × 225,216.59
  4. Step 4: Simplify right side
    386,387.55x = 120,091,940,081.49
  5. Step 5: Solve for x
    x = 120,091,940,081.49/386,387.55
  6. Step 6: Final answer
    x = 310,806.96

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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.