Home / 389,272.40-583,927.80-202,648.40

Finding the Fourth Proportional to 389,272.40, 583,927.80 and 202,648.40

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Solution

The fourth proportional to 389,272.40, 583,927.80 and 202,648.40 is: 303,982.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,272.40 : 583,927.80 = 202,648.40 : x
  2. Step 2: Convert to fraction form
    389,272.40/583,927.80 = 202,648.40/x
  3. Step 3: Cross multiply
    389,272.40x = 583,927.80 × 202,648.40
  4. Step 4: Simplify right side
    389,272.40x = 118,332,034,385.52
  5. Step 5: Solve for x
    x = 118,332,034,385.52/389,272.40
  6. Step 6: Final answer
    x = 303,982.60

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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.