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Finding the Fourth Proportional to 255,671.04, 383,480.64 and 68,658.24

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Solution

The fourth proportional to 255,671.04, 383,480.64 and 68,658.24 is: 102,980.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,671.04 : 383,480.64 = 68,658.24 : x
  2. Step 2: Convert to fraction form
    255,671.04/383,480.64 = 68,658.24/x
  3. Step 3: Cross multiply
    255,671.04x = 383,480.64 × 68,658.24
  4. Step 4: Simplify right side
    255,671.04x = 26,329,105,816.47
  5. Step 5: Solve for x
    x = 26,329,105,816.47/255,671.04
  6. Step 6: Final answer
    x = 102,980.40

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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.