Home / 288,031.60-397,464.96-158,971.24

Finding the Fourth Proportional to 288,031.60, 397,464.96 and 158,971.24

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Solution

The fourth proportional to 288,031.60, 397,464.96 and 158,971.24 is: 219,370.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,031.60 : 397,464.96 = 158,971.24 : x
  2. Step 2: Convert to fraction form
    288,031.60/397,464.96 = 158,971.24/x
  3. Step 3: Cross multiply
    288,031.60x = 397,464.96 × 158,971.24
  4. Step 4: Simplify right side
    288,031.60x = 63,185,497,547.75
  5. Step 5: Solve for x
    x = 63,185,497,547.75/288,031.60
  6. Step 6: Final answer
    x = 219,370.02

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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.