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Finding the Fourth Proportional to 344,065.43, 515,888.55 and 154,488.98

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Solution

The fourth proportional to 344,065.43, 515,888.55 and 154,488.98 is: 231,639.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,065.43 : 515,888.55 = 154,488.98 : x
  2. Step 2: Convert to fraction form
    344,065.43/515,888.55 = 154,488.98/x
  3. Step 3: Cross multiply
    344,065.43x = 515,888.55 × 154,488.98
  4. Step 4: Simplify right side
    344,065.43x = 79,699,093,303.74
  5. Step 5: Solve for x
    x = 79,699,093,303.74/344,065.43
  6. Step 6: Final answer
    x = 231,639.36

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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.