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Finding the Fourth Proportional to 377,521.79, 520,980.14 and 207,755.91

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Solution

The fourth proportional to 377,521.79, 520,980.14 and 207,755.91 is: 286,703.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,521.79 : 520,980.14 = 207,755.91 : x
  2. Step 2: Convert to fraction form
    377,521.79/520,980.14 = 207,755.91/x
  3. Step 3: Cross multiply
    377,521.79x = 520,980.14 × 207,755.91
  4. Step 4: Simplify right side
    377,521.79x = 108,236,703,597.02
  5. Step 5: Solve for x
    x = 108,236,703,597.02/377,521.79
  6. Step 6: Final answer
    x = 286,703.20

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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.