Home / 379,900.47-524,275.60-216,581.13

Finding the Fourth Proportional to 379,900.47, 524,275.60 and 216,581.13

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Solution

The fourth proportional to 379,900.47, 524,275.60 and 216,581.13 is: 298,889.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,900.47 : 524,275.60 = 216,581.13 : x
  2. Step 2: Convert to fraction form
    379,900.47/524,275.60 = 216,581.13/x
  3. Step 3: Cross multiply
    379,900.47x = 524,275.60 × 216,581.13
  4. Step 4: Simplify right side
    379,900.47x = 113,548,201,879.43
  5. Step 5: Solve for x
    x = 113,548,201,879.43/379,900.47
  6. Step 6: Final answer
    x = 298,889.34

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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.