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Finding the Fourth Proportional to 377,729.51, 521,265.78 and 207,963.63

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Solution

The fourth proportional to 377,729.51, 521,265.78 and 207,963.63 is: 286,989.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,729.51 : 521,265.78 = 207,963.63 : x
  2. Step 2: Convert to fraction form
    377,729.51/521,265.78 = 207,963.63/x
  3. Step 3: Cross multiply
    377,729.51x = 521,265.78 × 207,963.63
  4. Step 4: Simplify right side
    377,729.51x = 108,404,323,803.58
  5. Step 5: Solve for x
    x = 108,404,323,803.58/377,729.51
  6. Step 6: Final answer
    x = 286,989.29

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1.5x scale

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.