Home / 305,538.40-457,694.15-155,772.64

Finding the Fourth Proportional to 305,538.40, 457,694.15 and 155,772.64

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Solution

The fourth proportional to 305,538.40, 457,694.15 and 155,772.64 is: 233,346.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,538.40 : 457,694.15 = 155,772.64 : x
  2. Step 2: Convert to fraction form
    305,538.40/457,694.15 = 155,772.64/x
  3. Step 3: Cross multiply
    305,538.40x = 457,694.15 × 155,772.64
  4. Step 4: Simplify right side
    305,538.40x = 71,296,226,058.06
  5. Step 5: Solve for x
    x = 71,296,226,058.06/305,538.40
  6. Step 6: Final answer
    x = 233,346.20

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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.