Home / 389,417.20-584,125.80-179,465.20

Finding the Fourth Proportional to 389,417.20, 584,125.80 and 179,465.20

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Solution

The fourth proportional to 389,417.20, 584,125.80 and 179,465.20 is: 269,197.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,417.20 : 584,125.80 = 179,465.20 : x
  2. Step 2: Convert to fraction form
    389,417.20/584,125.80 = 179,465.20/x
  3. Step 3: Cross multiply
    389,417.20x = 584,125.80 × 179,465.20
  4. Step 4: Simplify right side
    389,417.20x = 104,830,253,522.16
  5. Step 5: Solve for x
    x = 104,830,253,522.16/389,417.20
  6. Step 6: Final answer
    x = 269,197.80

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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.