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Finding the Fourth Proportional to 210,750.59, 316,348.68 and 205,991.13

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Solution

The fourth proportional to 210,750.59, 316,348.68 and 205,991.13 is: 309,204.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,750.59 : 316,348.68 = 205,991.13 : x
  2. Step 2: Convert to fraction form
    210,750.59/316,348.68 = 205,991.13/x
  3. Step 3: Cross multiply
    210,750.59x = 316,348.68 × 205,991.13
  4. Step 4: Simplify right side
    210,750.59x = 65,165,020,880.90
  5. Step 5: Solve for x
    x = 65,165,020,880.90/210,750.59
  6. Step 6: Final answer
    x = 309,204.46

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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.