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Finding the Fourth Proportional to 366,948.70, 550,423.05 and 209,484.70

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Solution

The fourth proportional to 366,948.70, 550,423.05 and 209,484.70 is: 314,227.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,948.70 : 550,423.05 = 209,484.70 : x
  2. Step 2: Convert to fraction form
    366,948.70/550,423.05 = 209,484.70/x
  3. Step 3: Cross multiply
    366,948.70x = 550,423.05 × 209,484.70
  4. Step 4: Simplify right side
    366,948.70x = 115,305,207,502.34
  5. Step 5: Solve for x
    x = 115,305,207,502.34/366,948.70
  6. Step 6: Final answer
    x = 314,227.05

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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.