Home / 304,890.40-457,619.20-155,242.56

Finding the Fourth Proportional to 304,890.40, 457,619.20 and 155,242.56

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Solution

The fourth proportional to 304,890.40, 457,619.20 and 155,242.56 is: 233,008.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,890.40 : 457,619.20 = 155,242.56 : x
  2. Step 2: Convert to fraction form
    304,890.40/457,619.20 = 155,242.56/x
  3. Step 3: Cross multiply
    304,890.40x = 457,619.20 × 155,242.56
  4. Step 4: Simplify right side
    304,890.40x = 71,041,976,113.15
  5. Step 5: Solve for x
    x = 71,041,976,113.15/304,890.40
  6. Step 6: Final answer
    x = 233,008.24

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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.