Home / 307,511.40-461,267.10-181,540.20

Finding the Fourth Proportional to 307,511.40, 461,267.10 and 181,540.20

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Solution

The fourth proportional to 307,511.40, 461,267.10 and 181,540.20 is: 272,310.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,511.40 : 461,267.10 = 181,540.20 : x
  2. Step 2: Convert to fraction form
    307,511.40/461,267.10 = 181,540.20/x
  3. Step 3: Cross multiply
    307,511.40x = 461,267.10 × 181,540.20
  4. Step 4: Simplify right side
    307,511.40x = 83,738,521,587.42
  5. Step 5: Solve for x
    x = 83,738,521,587.42/307,511.40
  6. Step 6: Final answer
    x = 272,310.30

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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.