Home / 377,621.22-521,117.43-207,854.13

Finding the Fourth Proportional to 377,621.22, 521,117.43 and 207,854.13

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Solution

The fourth proportional to 377,621.22, 521,117.43 and 207,854.13 is: 286,838.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,621.22 : 521,117.43 = 207,854.13 : x
  2. Step 2: Convert to fraction form
    377,621.22/521,117.43 = 207,854.13/x
  3. Step 3: Cross multiply
    377,621.22x = 521,117.43 × 207,854.13
  4. Step 4: Simplify right side
    377,621.22x = 108,316,410,040.49
  5. Step 5: Solve for x
    x = 108,316,410,040.49/377,621.22
  6. Step 6: Final answer
    x = 286,838.78

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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.