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Finding the Fourth Proportional to 307,526.70, 461,290.05 and 141,314.70

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Solution

The fourth proportional to 307,526.70, 461,290.05 and 141,314.70 is: 211,972.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,526.70 : 461,290.05 = 141,314.70 : x
  2. Step 2: Convert to fraction form
    307,526.70/461,290.05 = 141,314.70/x
  3. Step 3: Cross multiply
    307,526.70x = 461,290.05 × 141,314.70
  4. Step 4: Simplify right side
    307,526.70x = 65,187,065,028.74
  5. Step 5: Solve for x
    x = 65,187,065,028.74/307,526.70
  6. Step 6: Final answer
    x = 211,972.05

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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.