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Finding the Fourth Proportional to 491,424.60, 737,161.20 and 255,228.60

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Solution

The fourth proportional to 491,424.60, 737,161.20 and 255,228.60 is: 382,855.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,424.60 : 737,161.20 = 255,228.60 : x
  2. Step 2: Convert to fraction form
    491,424.60/737,161.20 = 255,228.60/x
  3. Step 3: Cross multiply
    491,424.60x = 737,161.20 × 255,228.60
  4. Step 4: Simplify right side
    491,424.60x = 188,144,621,050.32
  5. Step 5: Solve for x
    x = 188,144,621,050.32/491,424.60
  6. Step 6: Final answer
    x = 382,855.52

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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.