Home / 288,051.08-397,480.32-158,987.18

Finding the Fourth Proportional to 288,051.08, 397,480.32 and 158,987.18

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Solution

The fourth proportional to 288,051.08, 397,480.32 and 158,987.18 is: 219,385.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,051.08 : 397,480.32 = 158,987.18 : x
  2. Step 2: Convert to fraction form
    288,051.08/397,480.32 = 158,987.18/x
  3. Step 3: Cross multiply
    288,051.08x = 397,480.32 × 158,987.18
  4. Step 4: Simplify right side
    288,051.08x = 63,194,275,182.30
  5. Step 5: Solve for x
    x = 63,194,275,182.30/288,051.08
  6. Step 6: Final answer
    x = 219,385.66

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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.