Home / 389,202.45-537,103.47-225,895.07

Finding the Fourth Proportional to 389,202.45, 537,103.47 and 225,895.07

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Solution

The fourth proportional to 389,202.45, 537,103.47 and 225,895.07 is: 311,737.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,202.45 : 537,103.47 = 225,895.07 : x
  2. Step 2: Convert to fraction form
    389,202.45/537,103.47 = 225,895.07/x
  3. Step 3: Cross multiply
    389,202.45x = 537,103.47 × 225,895.07
  4. Step 4: Simplify right side
    389,202.45x = 121,329,023,267.38
  5. Step 5: Solve for x
    x = 121,329,023,267.38/389,202.45
  6. Step 6: Final answer
    x = 311,737.56

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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.