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Finding the Fourth Proportional to 377,643.83, 521,148.49 and 207,877.96

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Solution

The fourth proportional to 377,643.83, 521,148.49 and 207,877.96 is: 286,871.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,643.83 : 521,148.49 = 207,877.96 : x
  2. Step 2: Convert to fraction form
    377,643.83/521,148.49 = 207,877.96/x
  3. Step 3: Cross multiply
    377,643.83x = 521,148.49 × 207,877.96
  4. Step 4: Simplify right side
    377,643.83x = 108,335,283,037.59
  5. Step 5: Solve for x
    x = 108,335,283,037.59/377,643.83
  6. Step 6: Final answer
    x = 286,871.58

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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.