Home / 260,044.20-390,066.30-170,231.40

Finding the Fourth Proportional to 260,044.20, 390,066.30 and 170,231.40

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Solution

The fourth proportional to 260,044.20, 390,066.30 and 170,231.40 is: 255,347.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,044.20 : 390,066.30 = 170,231.40 : x
  2. Step 2: Convert to fraction form
    260,044.20/390,066.30 = 170,231.40/x
  3. Step 3: Cross multiply
    260,044.20x = 390,066.30 × 170,231.40
  4. Step 4: Simplify right side
    260,044.20x = 66,401,532,341.82
  5. Step 5: Solve for x
    x = 66,401,532,341.82/260,044.20
  6. Step 6: Final answer
    x = 255,347.10

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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.