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Finding the Fourth Proportional to 288,246.40, 397,779.02 and 160,920.88

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Solution

The fourth proportional to 288,246.40, 397,779.02 and 160,920.88 is: 222,070.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,246.40 : 397,779.02 = 160,920.88 : x
  2. Step 2: Convert to fraction form
    288,246.40/397,779.02 = 160,920.88/x
  3. Step 3: Cross multiply
    288,246.40x = 397,779.02 × 160,920.88
  4. Step 4: Simplify right side
    288,246.40x = 64,010,949,943.94
  5. Step 5: Solve for x
    x = 64,010,949,943.94/288,246.40
  6. Step 6: Final answer
    x = 222,070.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.