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Finding the Fourth Proportional to 255,567.78, 383,426.82 and 75,657.78

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Solution

The fourth proportional to 255,567.78, 383,426.82 and 75,657.78 is: 113,508.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,567.78 : 383,426.82 = 75,657.78 : x
  2. Step 2: Convert to fraction form
    255,567.78/383,426.82 = 75,657.78/x
  3. Step 3: Cross multiply
    255,567.78x = 383,426.82 × 75,657.78
  4. Step 4: Simplify right side
    255,567.78x = 29,009,221,993.66
  5. Step 5: Solve for x
    x = 29,009,221,993.66/255,567.78
  6. Step 6: Final answer
    x = 113,508.92

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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.