Home / 429,282.57-643,923.90-148,799.82

Finding the Fourth Proportional to 429,282.57, 643,923.90 and 148,799.82

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Solution

The fourth proportional to 429,282.57, 643,923.90 and 148,799.82 is: 223,199.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,282.57 : 643,923.90 = 148,799.82 : x
  2. Step 2: Convert to fraction form
    429,282.57/643,923.90 = 148,799.82/x
  3. Step 3: Cross multiply
    429,282.57x = 643,923.90 × 148,799.82
  4. Step 4: Simplify right side
    429,282.57x = 95,815,760,413.70
  5. Step 5: Solve for x
    x = 95,815,760,413.70/429,282.57
  6. Step 6: Final answer
    x = 223,199.75

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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.