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Finding the Fourth Proportional to 377,900.88, 521,526.88 and 208,134.96

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Solution

The fourth proportional to 377,900.88, 521,526.88 and 208,134.96 is: 287,239.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,900.88 : 521,526.88 = 208,134.96 : x
  2. Step 2: Convert to fraction form
    377,900.88/521,526.88 = 208,134.96/x
  3. Step 3: Cross multiply
    377,900.88x = 521,526.88 × 208,134.96
  4. Step 4: Simplify right side
    377,900.88x = 108,547,976,307.73
  5. Step 5: Solve for x
    x = 108,547,976,307.73/377,900.88
  6. Step 6: Final answer
    x = 287,239.28

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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.