Home / 307,929.40-461,798.10-120,998.20

Finding the Fourth Proportional to 307,929.40, 461,798.10 and 120,998.20

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Solution

The fourth proportional to 307,929.40, 461,798.10 and 120,998.20 is: 181,459.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,929.40 : 461,798.10 = 120,998.20 : x
  2. Step 2: Convert to fraction form
    307,929.40/461,798.10 = 120,998.20/x
  3. Step 3: Cross multiply
    307,929.40x = 461,798.10 × 120,998.20
  4. Step 4: Simplify right side
    307,929.40x = 55,876,738,863.42
  5. Step 5: Solve for x
    x = 55,876,738,863.42/307,929.40
  6. Step 6: Final answer
    x = 181,459.58

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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.