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Finding the Fourth Proportional to 275,429.70, 413,144.55 and 262,307.70

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Solution

The fourth proportional to 275,429.70, 413,144.55 and 262,307.70 is: 393,461.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,429.70 : 413,144.55 = 262,307.70 : x
  2. Step 2: Convert to fraction form
    275,429.70/413,144.55 = 262,307.70/x
  3. Step 3: Cross multiply
    275,429.70x = 413,144.55 × 262,307.70
  4. Step 4: Simplify right side
    275,429.70x = 108,370,996,678.04
  5. Step 5: Solve for x
    x = 108,370,996,678.04/275,429.70
  6. Step 6: Final answer
    x = 393,461.55

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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.