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Finding the Fourth Proportional to 255,510.74, 383,340.90 and 75,600.92

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Solution

The fourth proportional to 255,510.74, 383,340.90 and 75,600.92 is: 113,423.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,510.74 : 383,340.90 = 75,600.92 : x
  2. Step 2: Convert to fraction form
    255,510.74/383,340.90 = 75,600.92/x
  3. Step 3: Cross multiply
    255,510.74x = 383,340.90 × 75,600.92
  4. Step 4: Simplify right side
    255,510.74x = 28,980,924,713.63
  5. Step 5: Solve for x
    x = 28,980,924,713.63/255,510.74
  6. Step 6: Final answer
    x = 113,423.51

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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.