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Finding the Fourth Proportional to 377,393.63, 520,803.20 and 207,624.11

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Solution

The fourth proportional to 377,393.63, 520,803.20 and 207,624.11 is: 286,521.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,393.63 : 520,803.20 = 207,624.11 : x
  2. Step 2: Convert to fraction form
    377,393.63/520,803.20 = 207,624.11/x
  3. Step 3: Cross multiply
    377,393.63x = 520,803.20 × 207,624.11
  4. Step 4: Simplify right side
    377,393.63x = 108,131,298,800.20
  5. Step 5: Solve for x
    x = 108,131,298,800.20/377,393.63
  6. Step 6: Final answer
    x = 286,521.26

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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.