Home / 379,730.98-524,039.25-209,971.18

Finding the Fourth Proportional to 379,730.98, 524,039.25 and 209,971.18

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Solution

The fourth proportional to 379,730.98, 524,039.25 and 209,971.18 is: 289,766.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,730.98 : 524,039.25 = 209,971.18 : x
  2. Step 2: Convert to fraction form
    379,730.98/524,039.25 = 209,971.18/x
  3. Step 3: Cross multiply
    379,730.98x = 524,039.25 × 209,971.18
  4. Step 4: Simplify right side
    379,730.98x = 110,033,139,688.82
  5. Step 5: Solve for x
    x = 110,033,139,688.82/379,730.98
  6. Step 6: Final answer
    x = 289,766.03

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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.