Home / 286,949.20-430,420.24-129,066.16

Finding the Fourth Proportional to 286,949.20, 430,420.24 and 129,066.16

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Solution

The fourth proportional to 286,949.20, 430,420.24 and 129,066.16 is: 193,597.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,949.20 : 430,420.24 = 129,066.16 : x
  2. Step 2: Convert to fraction form
    286,949.20/430,420.24 = 129,066.16/x
  3. Step 3: Cross multiply
    286,949.20x = 430,420.24 × 129,066.16
  4. Step 4: Simplify right side
    286,949.20x = 55,552,687,563.08
  5. Step 5: Solve for x
    x = 55,552,687,563.08/286,949.20
  6. Step 6: Final answer
    x = 193,597.64

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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.