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Finding the Fourth Proportional to 307,527.70, 461,291.55 and 141,315.70

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Solution

The fourth proportional to 307,527.70, 461,291.55 and 141,315.70 is: 211,973.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,527.70 : 461,291.55 = 141,315.70 : x
  2. Step 2: Convert to fraction form
    307,527.70/461,291.55 = 141,315.70/x
  3. Step 3: Cross multiply
    307,527.70x = 461,291.55 × 141,315.70
  4. Step 4: Simplify right side
    307,527.70x = 65,187,738,292.34
  5. Step 5: Solve for x
    x = 65,187,738,292.34/307,527.70
  6. Step 6: Final answer
    x = 211,973.55

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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.