Home / 281,720.10-423,017.55-163,622.10

Finding the Fourth Proportional to 281,720.10, 423,017.55 and 163,622.10

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Solution

The fourth proportional to 281,720.10, 423,017.55 and 163,622.10 is: 245,687.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,720.10 : 423,017.55 = 163,622.10 : x
  2. Step 2: Convert to fraction form
    281,720.10/423,017.55 = 163,622.10/x
  3. Step 3: Cross multiply
    281,720.10x = 423,017.55 × 163,622.10
  4. Step 4: Simplify right side
    281,720.10x = 69,215,019,867.86
  5. Step 5: Solve for x
    x = 69,215,019,867.86/281,720.10
  6. Step 6: Final answer
    x = 245,687.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.