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Finding the Fourth Proportional to 276,302.34, 414,453.54 and 76,622.76

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Solution

The fourth proportional to 276,302.34, 414,453.54 and 76,622.76 is: 114,934.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,302.34 : 414,453.54 = 76,622.76 : x
  2. Step 2: Convert to fraction form
    276,302.34/414,453.54 = 76,622.76/x
  3. Step 3: Cross multiply
    276,302.34x = 414,453.54 × 76,622.76
  4. Step 4: Simplify right side
    276,302.34x = 31,756,574,126.57
  5. Step 5: Solve for x
    x = 31,756,574,126.57/276,302.34
  6. Step 6: Final answer
    x = 114,934.15

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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.