Home / 281,807.20-423,086.10-163,563.40

Finding the Fourth Proportional to 281,807.20, 423,086.10 and 163,563.40

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Solution

The fourth proportional to 281,807.20, 423,086.10 and 163,563.40 is: 245,562.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,807.20 : 423,086.10 = 163,563.40 : x
  2. Step 2: Convert to fraction form
    281,807.20/423,086.10 = 163,563.40/x
  3. Step 3: Cross multiply
    281,807.20x = 423,086.10 × 163,563.40
  4. Step 4: Simplify right side
    281,807.20x = 69,201,401,008.74
  5. Step 5: Solve for x
    x = 69,201,401,008.74/281,807.20
  6. Step 6: Final answer
    x = 245,562.93

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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.