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Finding the Fourth Proportional to 389,150.55, 537,041.11 and 225,794.71

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Solution

The fourth proportional to 389,150.55, 537,041.11 and 225,794.71 is: 311,604.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,150.55 : 537,041.11 = 225,794.71 : x
  2. Step 2: Convert to fraction form
    389,150.55/537,041.11 = 225,794.71/x
  3. Step 3: Cross multiply
    389,150.55x = 537,041.11 × 225,794.71
  4. Step 4: Simplify right side
    389,150.55x = 121,261,041,690.53
  5. Step 5: Solve for x
    x = 121,261,041,690.53/389,150.55
  6. Step 6: Final answer
    x = 311,604.45

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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.