Home / 305,200.10-457,335.42-155,215.64

Finding the Fourth Proportional to 305,200.10, 457,335.42 and 155,215.64

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Solution

The fourth proportional to 305,200.10, 457,335.42 and 155,215.64 is: 232,587.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,200.10 : 457,335.42 = 155,215.64 : x
  2. Step 2: Convert to fraction form
    305,200.10/457,335.42 = 155,215.64/x
  3. Step 3: Cross multiply
    305,200.10x = 457,335.42 × 155,215.64
  4. Step 4: Simplify right side
    305,200.10x = 70,985,610,471.25
  5. Step 5: Solve for x
    x = 70,985,610,471.25/305,200.10
  6. Step 6: Final answer
    x = 232,587.11

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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.