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Finding the Fourth Proportional to 322,779.20, 484,168.80 and 164,955.20

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Solution

The fourth proportional to 322,779.20, 484,168.80 and 164,955.20 is: 247,432.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,779.20 : 484,168.80 = 164,955.20 : x
  2. Step 2: Convert to fraction form
    322,779.20/484,168.80 = 164,955.20/x
  3. Step 3: Cross multiply
    322,779.20x = 484,168.80 × 164,955.20
  4. Step 4: Simplify right side
    322,779.20x = 79,866,161,237.76
  5. Step 5: Solve for x
    x = 79,866,161,237.76/322,779.20
  6. Step 6: Final answer
    x = 247,432.80

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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.