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Finding the Fourth Proportional to 348,452.48, 480,635.04 and 276,718.72

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Solution

The fourth proportional to 348,452.48, 480,635.04 and 276,718.72 is: 381,689.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,452.48 : 480,635.04 = 276,718.72 : x
  2. Step 2: Convert to fraction form
    348,452.48/480,635.04 = 276,718.72/x
  3. Step 3: Cross multiply
    348,452.48x = 480,635.04 × 276,718.72
  4. Step 4: Simplify right side
    348,452.48x = 133,000,713,055.95
  5. Step 5: Solve for x
    x = 133,000,713,055.95/348,452.48
  6. Step 6: Final answer
    x = 381,689.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.