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Finding the Fourth Proportional to 281,626.79, 388,630.10 and 160,763.27

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Solution

The fourth proportional to 281,626.79, 388,630.10 and 160,763.27 is: 221,844.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,626.79 : 388,630.10 = 160,763.27 : x
  2. Step 2: Convert to fraction form
    281,626.79/388,630.10 = 160,763.27/x
  3. Step 3: Cross multiply
    281,626.79x = 388,630.10 × 160,763.27
  4. Step 4: Simplify right side
    281,626.79x = 62,477,443,753.28
  5. Step 5: Solve for x
    x = 62,477,443,753.28/281,626.79
  6. Step 6: Final answer
    x = 221,844.82

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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.