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Finding the Fourth Proportional to 377,135.95, 520,445.91 and 207,369.67

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Solution

The fourth proportional to 377,135.95, 520,445.91 and 207,369.67 is: 286,169.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,135.95 : 520,445.91 = 207,369.67 : x
  2. Step 2: Convert to fraction form
    377,135.95/520,445.91 = 207,369.67/x
  3. Step 3: Cross multiply
    377,135.95x = 520,445.91 × 207,369.67
  4. Step 4: Simplify right side
    377,135.95x = 107,924,696,609.55
  5. Step 5: Solve for x
    x = 107,924,696,609.55/377,135.95
  6. Step 6: Final answer
    x = 286,169.21

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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.