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Finding the Fourth Proportional to 377,212.34, 520,542.65 and 207,446.47

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Solution

The fourth proportional to 377,212.34, 520,542.65 and 207,446.47 is: 286,270.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,212.34 : 520,542.65 = 207,446.47 : x
  2. Step 2: Convert to fraction form
    377,212.34/520,542.65 = 207,446.47/x
  3. Step 3: Cross multiply
    377,212.34x = 520,542.65 × 207,446.47
  4. Step 4: Simplify right side
    377,212.34x = 107,984,734,444.21
  5. Step 5: Solve for x
    x = 107,984,734,444.21/377,212.34
  6. Step 6: Final answer
    x = 286,270.42

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1.5x scale

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.