Home / 211,487.98-317,217.18-99,192.82

Finding the Fourth Proportional to 211,487.98, 317,217.18 and 99,192.82

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Solution

The fourth proportional to 211,487.98, 317,217.18 and 99,192.82 is: 148,782.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,487.98 : 317,217.18 = 99,192.82 : x
  2. Step 2: Convert to fraction form
    211,487.98/317,217.18 = 99,192.82/x
  3. Step 3: Cross multiply
    211,487.98x = 317,217.18 × 99,192.82
  4. Step 4: Simplify right side
    211,487.98x = 31,465,666,636.65
  5. Step 5: Solve for x
    x = 31,465,666,636.65/211,487.98
  6. Step 6: Final answer
    x = 148,782.29

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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.