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Finding the Fourth Proportional to 606,661.40, 910,320.15 and 251,711.30

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Solution

The fourth proportional to 606,661.40, 910,320.15 and 251,711.30 is: 377,703.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,661.40 : 910,320.15 = 251,711.30 : x
  2. Step 2: Convert to fraction form
    606,661.40/910,320.15 = 251,711.30/x
  3. Step 3: Cross multiply
    606,661.40x = 910,320.15 × 251,711.30
  4. Step 4: Simplify right side
    606,661.40x = 229,137,868,372.70
  5. Step 5: Solve for x
    x = 229,137,868,372.70/606,661.40
  6. Step 6: Final answer
    x = 377,703.06

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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.