Home / 307,965.40-461,948.10-293,531.20

Finding the Fourth Proportional to 307,965.40, 461,948.10 and 293,531.20

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Solution

The fourth proportional to 307,965.40, 461,948.10 and 293,531.20 is: 440,296.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,965.40 : 461,948.10 = 293,531.20 : x
  2. Step 2: Convert to fraction form
    307,965.40/461,948.10 = 293,531.20/x
  3. Step 3: Cross multiply
    307,965.40x = 461,948.10 × 293,531.20
  4. Step 4: Simplify right side
    307,965.40x = 135,596,180,130.72
  5. Step 5: Solve for x
    x = 135,596,180,130.72/307,965.40
  6. Step 6: Final answer
    x = 440,296.80

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Similar ratio
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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.