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Finding the Fourth Proportional to 210,821.00, 316,273.82 and 77,701.95

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Solution

The fourth proportional to 210,821.00, 316,273.82 and 77,701.95 is: 116,568.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,821.00 : 316,273.82 = 77,701.95 : x
  2. Step 2: Convert to fraction form
    210,821.00/316,273.82 = 77,701.95/x
  3. Step 3: Cross multiply
    210,821.00x = 316,273.82 × 77,701.95
  4. Step 4: Simplify right side
    210,821.00x = 24,575,092,159.44
  5. Step 5: Solve for x
    x = 24,575,092,159.44/210,821.00
  6. Step 6: Final answer
    x = 116,568.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.