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Finding the Fourth Proportional to 259,315.30, 389,556.15 and 249,400.90

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Solution

The fourth proportional to 259,315.30, 389,556.15 and 249,400.90 is: 374,662.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,315.30 : 389,556.15 = 249,400.90 : x
  2. Step 2: Convert to fraction form
    259,315.30/389,556.15 = 249,400.90/x
  3. Step 3: Cross multiply
    259,315.30x = 389,556.15 × 249,400.90
  4. Step 4: Simplify right side
    259,315.30x = 97,155,654,410.54
  5. Step 5: Solve for x
    x = 97,155,654,410.54/259,315.30
  6. Step 6: Final answer
    x = 374,662.25

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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.