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Finding the Fourth Proportional to 377,468.50, 520,910.18 and 207,706.28

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Solution

The fourth proportional to 377,468.50, 520,910.18 and 207,706.28 is: 286,636.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,468.50 : 520,910.18 = 207,706.28 : x
  2. Step 2: Convert to fraction form
    377,468.50/520,910.18 = 207,706.28/x
  3. Step 3: Cross multiply
    377,468.50x = 520,910.18 × 207,706.28
  4. Step 4: Simplify right side
    377,468.50x = 108,196,315,701.93
  5. Step 5: Solve for x
    x = 108,196,315,701.93/377,468.50
  6. Step 6: Final answer
    x = 286,636.67

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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.