Home / 370,809.20-556,359.60-146,131.40

Finding the Fourth Proportional to 370,809.20, 556,359.60 and 146,131.40

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Solution

The fourth proportional to 370,809.20, 556,359.60 and 146,131.40 is: 219,254.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,809.20 : 556,359.60 = 146,131.40 : x
  2. Step 2: Convert to fraction form
    370,809.20/556,359.60 = 146,131.40/x
  3. Step 3: Cross multiply
    370,809.20x = 556,359.60 × 146,131.40
  4. Step 4: Simplify right side
    370,809.20x = 81,301,607,251.44
  5. Step 5: Solve for x
    x = 81,301,607,251.44/370,809.20
  6. Step 6: Final answer
    x = 219,254.56

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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.