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Finding the Fourth Proportional to 339,956.91, 469,152.05 and 187,006.47

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Solution

The fourth proportional to 339,956.91, 469,152.05 and 187,006.47 is: 258,075.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,956.91 : 469,152.05 = 187,006.47 : x
  2. Step 2: Convert to fraction form
    339,956.91/469,152.05 = 187,006.47/x
  3. Step 3: Cross multiply
    339,956.91x = 469,152.05 × 187,006.47
  4. Step 4: Simplify right side
    339,956.91x = 87,734,468,763.76
  5. Step 5: Solve for x
    x = 87,734,468,763.76/339,956.91
  6. Step 6: Final answer
    x = 258,075.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.