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Finding the Fourth Proportional to 303,911.40, 455,867.10 and 93,613.80

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Solution

The fourth proportional to 303,911.40, 455,867.10 and 93,613.80 is: 140,420.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,911.40 : 455,867.10 = 93,613.80 : x
  2. Step 2: Convert to fraction form
    303,911.40/455,867.10 = 93,613.80/x
  3. Step 3: Cross multiply
    303,911.40x = 455,867.10 × 93,613.80
  4. Step 4: Simplify right side
    303,911.40x = 42,675,451,525.98
  5. Step 5: Solve for x
    x = 42,675,451,525.98/303,911.40
  6. Step 6: Final answer
    x = 140,420.70

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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.