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Finding the Fourth Proportional to 255,398.40, 383,097.60 and 118,607.73

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Solution

The fourth proportional to 255,398.40, 383,097.60 and 118,607.73 is: 177,911.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,398.40 : 383,097.60 = 118,607.73 : x
  2. Step 2: Convert to fraction form
    255,398.40/383,097.60 = 118,607.73/x
  3. Step 3: Cross multiply
    255,398.40x = 383,097.60 × 118,607.73
  4. Step 4: Simplify right side
    255,398.40x = 45,438,335,267.83
  5. Step 5: Solve for x
    x = 45,438,335,267.83/255,398.40
  6. Step 6: Final answer
    x = 177,911.59

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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.