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Finding the Fourth Proportional to 260,620.80, 391,514.40 and 249,993.60

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Solution

The fourth proportional to 260,620.80, 391,514.40 and 249,993.60 is: 375,549.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,620.80 : 391,514.40 = 249,993.60 : x
  2. Step 2: Convert to fraction form
    260,620.80/391,514.40 = 249,993.60/x
  3. Step 3: Cross multiply
    260,620.80x = 391,514.40 × 249,993.60
  4. Step 4: Simplify right side
    260,620.80x = 97,876,094,307.84
  5. Step 5: Solve for x
    x = 97,876,094,307.84/260,620.80
  6. Step 6: Final answer
    x = 375,549.82

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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.