Home / 288,089.28-397,563.04-160,765.60

Finding the Fourth Proportional to 288,089.28, 397,563.04 and 160,765.60

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Solution

The fourth proportional to 288,089.28, 397,563.04 and 160,765.60 is: 221,856.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,089.28 : 397,563.04 = 160,765.60 : x
  2. Step 2: Convert to fraction form
    288,089.28/397,563.04 = 160,765.60/x
  3. Step 3: Cross multiply
    288,089.28x = 397,563.04 × 160,765.60
  4. Step 4: Simplify right side
    288,089.28x = 63,914,460,663.42
  5. Step 5: Solve for x
    x = 63,914,460,663.42/288,089.28
  6. Step 6: Final answer
    x = 221,856.44

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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.