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Finding the Fourth Proportional to 270,704.31, 405,916.30 and 144,310.60

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Solution

The fourth proportional to 270,704.31, 405,916.30 and 144,310.60 is: 216,391.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,704.31 : 405,916.30 = 144,310.60 : x
  2. Step 2: Convert to fraction form
    270,704.31/405,916.30 = 144,310.60/x
  3. Step 3: Cross multiply
    270,704.31x = 405,916.30 × 144,310.60
  4. Step 4: Simplify right side
    270,704.31x = 58,578,024,802.78
  5. Step 5: Solve for x
    x = 58,578,024,802.78/270,704.31
  6. Step 6: Final answer
    x = 216,391.18

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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.