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Finding the Fourth Proportional to 255,613.80, 383,420.70 and 224,509.80

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Solution

The fourth proportional to 255,613.80, 383,420.70 and 224,509.80 is: 336,764.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,613.80 : 383,420.70 = 224,509.80 : x
  2. Step 2: Convert to fraction form
    255,613.80/383,420.70 = 224,509.80/x
  3. Step 3: Cross multiply
    255,613.80x = 383,420.70 × 224,509.80
  4. Step 4: Simplify right side
    255,613.80x = 86,081,704,672.86
  5. Step 5: Solve for x
    x = 86,081,704,672.86/255,613.80
  6. Step 6: Final answer
    x = 336,764.70

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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.