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Finding the Fourth Proportional to 389,805.20, 584,254.20 and 179,464.40

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Solution

The fourth proportional to 389,805.20, 584,254.20 and 179,464.40 is: 268,987.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,805.20 : 584,254.20 = 179,464.40 : x
  2. Step 2: Convert to fraction form
    389,805.20/584,254.20 = 179,464.40/x
  3. Step 3: Cross multiply
    389,805.20x = 584,254.20 × 179,464.40
  4. Step 4: Simplify right side
    389,805.20x = 104,852,829,450.48
  5. Step 5: Solve for x
    x = 104,852,829,450.48/389,805.20
  6. Step 6: Final answer
    x = 268,987.76

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1.5x scale

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.