Home / 389,335.60-537,202.92-223,731.56

Finding the Fourth Proportional to 389,335.60, 537,202.92 and 223,731.56

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Solution

The fourth proportional to 389,335.60, 537,202.92 and 223,731.56 is: 308,703.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,335.60 : 537,202.92 = 223,731.56 : x
  2. Step 2: Convert to fraction form
    389,335.60/537,202.92 = 223,731.56/x
  3. Step 3: Cross multiply
    389,335.60x = 537,202.92 × 223,731.56
  4. Step 4: Simplify right side
    389,335.60x = 120,189,247,328.16
  5. Step 5: Solve for x
    x = 120,189,247,328.16/389,335.60
  6. Step 6: Final answer
    x = 308,703.46

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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.