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Finding the Fourth Proportional to 251,435.60, 377,590.80 and 133,337.60

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Solution

The fourth proportional to 251,435.60, 377,590.80 and 133,337.60 is: 200,238.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,435.60 : 377,590.80 = 133,337.60 : x
  2. Step 2: Convert to fraction form
    251,435.60/377,590.80 = 133,337.60/x
  3. Step 3: Cross multiply
    251,435.60x = 377,590.80 × 133,337.60
  4. Step 4: Simplify right side
    251,435.60x = 50,347,051,054.08
  5. Step 5: Solve for x
    x = 50,347,051,054.08/251,435.60
  6. Step 6: Final answer
    x = 200,238.36

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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.