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Finding the Fourth Proportional to 381,817.92, 526,877.98 and 220,683.40

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Solution

The fourth proportional to 381,817.92, 526,877.98 and 220,683.40 is: 304,525.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,817.92 : 526,877.98 = 220,683.40 : x
  2. Step 2: Convert to fraction form
    381,817.92/526,877.98 = 220,683.40/x
  3. Step 3: Cross multiply
    381,817.92x = 526,877.98 × 220,683.40
  4. Step 4: Simplify right side
    381,817.92x = 116,273,224,011.53
  5. Step 5: Solve for x
    x = 116,273,224,011.53/381,817.92
  6. Step 6: Final answer
    x = 304,525.32

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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.