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Finding the Fourth Proportional to 288,607.52, 398,275.58 and 161,283.22

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Solution

The fourth proportional to 288,607.52, 398,275.58 and 161,283.22 is: 222,569.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,607.52 : 398,275.58 = 161,283.22 : x
  2. Step 2: Convert to fraction form
    288,607.52/398,275.58 = 161,283.22/x
  3. Step 3: Cross multiply
    288,607.52x = 398,275.58 × 161,283.22
  4. Step 4: Simplify right side
    288,607.52x = 64,235,167,397.29
  5. Step 5: Solve for x
    x = 64,235,167,397.29/288,607.52
  6. Step 6: Final answer
    x = 222,569.28

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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.