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Finding the Fourth Proportional to 255,903.20, 383,854.80 and 231,408.80

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Solution

The fourth proportional to 255,903.20, 383,854.80 and 231,408.80 is: 347,113.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,903.20 : 383,854.80 = 231,408.80 : x
  2. Step 2: Convert to fraction form
    255,903.20/383,854.80 = 231,408.80/x
  3. Step 3: Cross multiply
    255,903.20x = 383,854.80 × 231,408.80
  4. Step 4: Simplify right side
    255,903.20x = 88,827,378,642.24
  5. Step 5: Solve for x
    x = 88,827,378,642.24/255,903.20
  6. Step 6: Final answer
    x = 347,113.20

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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.