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Finding the Fourth Proportional to 340,227.60, 510,535.80 and 130,016.40

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Solution

The fourth proportional to 340,227.60, 510,535.80 and 130,016.40 is: 195,098.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,227.60 : 510,535.80 = 130,016.40 : x
  2. Step 2: Convert to fraction form
    340,227.60/510,535.80 = 130,016.40/x
  3. Step 3: Cross multiply
    340,227.60x = 510,535.80 × 130,016.40
  4. Step 4: Simplify right side
    340,227.60x = 66,378,026,787.12
  5. Step 5: Solve for x
    x = 66,378,026,787.12/340,227.60
  6. Step 6: Final answer
    x = 195,098.89

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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.