Home / 331,342.40-457,257.76-180,439.28

Finding the Fourth Proportional to 331,342.40, 457,257.76 and 180,439.28

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Solution

The fourth proportional to 331,342.40, 457,257.76 and 180,439.28 is: 249,009.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,342.40 : 457,257.76 = 180,439.28 : x
  2. Step 2: Convert to fraction form
    331,342.40/457,257.76 = 180,439.28/x
  3. Step 3: Cross multiply
    331,342.40x = 457,257.76 × 180,439.28
  4. Step 4: Simplify right side
    331,342.40x = 82,507,260,988.81
  5. Step 5: Solve for x
    x = 82,507,260,988.81/331,342.40
  6. Step 6: Final answer
    x = 249,009.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.