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Finding the Fourth Proportional to 381,001.71, 525,788.29 and 208,935.39

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Solution

The fourth proportional to 381,001.71, 525,788.29 and 208,935.39 is: 288,334.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,001.71 : 525,788.29 = 208,935.39 : x
  2. Step 2: Convert to fraction form
    381,001.71/525,788.29 = 208,935.39/x
  3. Step 3: Cross multiply
    381,001.71x = 525,788.29 × 208,935.39
  4. Step 4: Simplify right side
    381,001.71x = 109,855,779,376.88
  5. Step 5: Solve for x
    x = 109,855,779,376.88/381,001.71
  6. Step 6: Final answer
    x = 288,334.08

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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.