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Finding the Fourth Proportional to 370,766.03, 511,661.15 and 217,810.67

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Solution

The fourth proportional to 370,766.03, 511,661.15 and 217,810.67 is: 300,581.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,766.03 : 511,661.15 = 217,810.67 : x
  2. Step 2: Convert to fraction form
    370,766.03/511,661.15 = 217,810.67/x
  3. Step 3: Cross multiply
    370,766.03x = 511,661.15 × 217,810.67
  4. Step 4: Simplify right side
    370,766.03x = 111,445,257,894.47
  5. Step 5: Solve for x
    x = 111,445,257,894.47/370,766.03
  6. Step 6: Final answer
    x = 300,581.09

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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.