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Finding the Fourth Proportional to 253,627.81, 380,581.74 and 141,371.22

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Solution

The fourth proportional to 253,627.81, 380,581.74 and 141,371.22 is: 212,134.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,627.81 : 380,581.74 = 141,371.22 : x
  2. Step 2: Convert to fraction form
    253,627.81/380,581.74 = 141,371.22/x
  3. Step 3: Cross multiply
    253,627.81x = 380,581.74 × 141,371.22
  4. Step 4: Simplify right side
    253,627.81x = 53,803,306,320.70
  5. Step 5: Solve for x
    x = 53,803,306,320.70/253,627.81
  6. Step 6: Final answer
    x = 212,134.89

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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.