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Finding the Fourth Proportional to 491,153.60, 736,730.40 and 175,620.80

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Solution

The fourth proportional to 491,153.60, 736,730.40 and 175,620.80 is: 263,431.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,153.60 : 736,730.40 = 175,620.80 : x
  2. Step 2: Convert to fraction form
    491,153.60/736,730.40 = 175,620.80/x
  3. Step 3: Cross multiply
    491,153.60x = 736,730.40 × 175,620.80
  4. Step 4: Simplify right side
    491,153.60x = 129,385,182,232.32
  5. Step 5: Solve for x
    x = 129,385,182,232.32/491,153.60
  6. Step 6: Final answer
    x = 263,431.20

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Similar ratio
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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.