Home / 379,731.98-524,040.63-209,972.18

Finding the Fourth Proportional to 379,731.98, 524,040.63 and 209,972.18

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Solution

The fourth proportional to 379,731.98, 524,040.63 and 209,972.18 is: 289,767.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,731.98 : 524,040.63 = 209,972.18 : x
  2. Step 2: Convert to fraction form
    379,731.98/524,040.63 = 209,972.18/x
  3. Step 3: Cross multiply
    379,731.98x = 524,040.63 × 209,972.18
  4. Step 4: Simplify right side
    379,731.98x = 110,033,953,489.67
  5. Step 5: Solve for x
    x = 110,033,953,489.67/379,731.98
  6. Step 6: Final answer
    x = 289,767.41

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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.