Home / 288,090.41-397,565.09-160,765.97

Finding the Fourth Proportional to 288,090.41, 397,565.09 and 160,765.97

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Solution

The fourth proportional to 288,090.41, 397,565.09 and 160,765.97 is: 221,857.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,090.41 : 397,565.09 = 160,765.97 : x
  2. Step 2: Convert to fraction form
    288,090.41/397,565.09 = 160,765.97/x
  3. Step 3: Cross multiply
    288,090.41x = 397,565.09 × 160,765.97
  4. Step 4: Simplify right side
    288,090.41x = 63,914,937,733.90
  5. Step 5: Solve for x
    x = 63,914,937,733.90/288,090.41
  6. Step 6: Final answer
    x = 221,857.22

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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.