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Finding the Fourth Proportional to 377,326.32, 520,707.60 and 207,556.80

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Solution

The fourth proportional to 377,326.32, 520,707.60 and 207,556.80 is: 286,426.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,326.32 : 520,707.60 = 207,556.80 : x
  2. Step 2: Convert to fraction form
    377,326.32/520,707.60 = 207,556.80/x
  3. Step 3: Cross multiply
    377,326.32x = 520,707.60 × 207,556.80
  4. Step 4: Simplify right side
    377,326.32x = 108,076,403,191.68
  5. Step 5: Solve for x
    x = 108,076,403,191.68/377,326.32
  6. Step 6: Final answer
    x = 286,426.89

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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.