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Finding the Fourth Proportional to 305,203.35, 457,340.28 and 155,218.89

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Solution

The fourth proportional to 305,203.35, 457,340.28 and 155,218.89 is: 232,591.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,203.35 : 457,340.28 = 155,218.89 : x
  2. Step 2: Convert to fraction form
    305,203.35/457,340.28 = 155,218.89/x
  3. Step 3: Cross multiply
    305,203.35x = 457,340.28 × 155,218.89
  4. Step 4: Simplify right side
    305,203.35x = 70,987,850,613.89
  5. Step 5: Solve for x
    x = 70,987,850,613.89/305,203.35
  6. Step 6: Final answer
    x = 232,591.98

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1.5x scale

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.