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Finding the Fourth Proportional to 281,301.96, 388,223.10 and 168,122.28

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Solution

The fourth proportional to 281,301.96, 388,223.10 and 168,122.28 is: 232,024.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,301.96 : 388,223.10 = 168,122.28 : x
  2. Step 2: Convert to fraction form
    281,301.96/388,223.10 = 168,122.28/x
  3. Step 3: Cross multiply
    281,301.96x = 388,223.10 × 168,122.28
  4. Step 4: Simplify right side
    281,301.96x = 65,268,952,720.67
  5. Step 5: Solve for x
    x = 65,268,952,720.67/281,301.96
  6. Step 6: Final answer
    x = 232,024.52

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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.