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Finding the Fourth Proportional to 288,020.56, 397,468.48 and 160,693.42

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Solution

The fourth proportional to 288,020.56, 397,468.48 and 160,693.42 is: 221,756.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,020.56 : 397,468.48 = 160,693.42 : x
  2. Step 2: Convert to fraction form
    288,020.56/397,468.48 = 160,693.42/x
  3. Step 3: Cross multiply
    288,020.56x = 397,468.48 × 160,693.42
  4. Step 4: Simplify right side
    288,020.56x = 63,870,569,393.40
  5. Step 5: Solve for x
    x = 63,870,569,393.40/288,020.56
  6. Step 6: Final answer
    x = 221,756.98

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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.