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Finding the Fourth Proportional to 295,613.40, 443,420.10 and 279,283.80

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Solution

The fourth proportional to 295,613.40, 443,420.10 and 279,283.80 is: 418,925.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,613.40 : 443,420.10 = 279,283.80 : x
  2. Step 2: Convert to fraction form
    295,613.40/443,420.10 = 279,283.80/x
  3. Step 3: Cross multiply
    295,613.40x = 443,420.10 × 279,283.80
  4. Step 4: Simplify right side
    295,613.40x = 123,840,050,524.38
  5. Step 5: Solve for x
    x = 123,840,050,524.38/295,613.40
  6. Step 6: Final answer
    x = 418,925.70

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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.