Home / 389,103.96-583,323.30-149,390.04

Finding the Fourth Proportional to 389,103.96, 583,323.30 and 149,390.04

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Solution

The fourth proportional to 389,103.96, 583,323.30 and 149,390.04 is: 223,957.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,103.96 : 583,323.30 = 149,390.04 : x
  2. Step 2: Convert to fraction form
    389,103.96/583,323.30 = 149,390.04/x
  3. Step 3: Cross multiply
    389,103.96x = 583,323.30 × 149,390.04
  4. Step 4: Simplify right side
    389,103.96x = 87,142,691,119.93
  5. Step 5: Solve for x
    x = 87,142,691,119.93/389,103.96
  6. Step 6: Final answer
    x = 223,957.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.