Home / 288,215.65-397,721.10-160,899.31

Finding the Fourth Proportional to 288,215.65, 397,721.10 and 160,899.31

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Solution

The fourth proportional to 288,215.65, 397,721.10 and 160,899.31 is: 222,031.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,215.65 : 397,721.10 = 160,899.31 : x
  2. Step 2: Convert to fraction form
    288,215.65/397,721.10 = 160,899.31/x
  3. Step 3: Cross multiply
    288,215.65x = 397,721.10 × 160,899.31
  4. Step 4: Simplify right side
    288,215.65x = 63,993,050,562.44
  5. Step 5: Solve for x
    x = 63,993,050,562.44/288,215.65
  6. Step 6: Final answer
    x = 222,031.84

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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.