Home / 259,430.40-389,145.60-230,890.05

Finding the Fourth Proportional to 259,430.40, 389,145.60 and 230,890.05

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Solution

The fourth proportional to 259,430.40, 389,145.60 and 230,890.05 is: 346,335.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,430.40 : 389,145.60 = 230,890.05 : x
  2. Step 2: Convert to fraction form
    259,430.40/389,145.60 = 230,890.05/x
  3. Step 3: Cross multiply
    259,430.40x = 389,145.60 × 230,890.05
  4. Step 4: Simplify right side
    259,430.40x = 89,849,847,041.28
  5. Step 5: Solve for x
    x = 89,849,847,041.28/259,430.40
  6. Step 6: Final answer
    x = 346,335.08

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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.