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Finding the Fourth Proportional to 503,136.60, 755,288.10 and 303,682.20

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Solution

The fourth proportional to 503,136.60, 755,288.10 and 303,682.20 is: 455,875.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,136.60 : 755,288.10 = 303,682.20 : x
  2. Step 2: Convert to fraction form
    503,136.60/755,288.10 = 303,682.20/x
  3. Step 3: Cross multiply
    503,136.60x = 755,288.10 × 303,682.20
  4. Step 4: Simplify right side
    503,136.60x = 229,367,551,841.82
  5. Step 5: Solve for x
    x = 229,367,551,841.82/503,136.60
  6. Step 6: Final answer
    x = 455,875.31

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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.