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Finding the Fourth Proportional to 273,948, 410,922.15 and 86,959.50

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Solution

The fourth proportional to 273,948, 410,922.15 and 86,959.50 is: 130,439.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,948 : 410,922.15 = 86,959.50 : x
  2. Step 2: Convert to fraction form
    273,948/410,922.15 = 86,959.50/x
  3. Step 3: Cross multiply
    273,948x = 410,922.15 × 86,959.50
  4. Step 4: Simplify right side
    273,948x = 35,733,584,702.93
  5. Step 5: Solve for x
    x = 35,733,584,702.93/273,948
  6. Step 6: Final answer
    x = 130,439.30

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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.