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Finding the Fourth Proportional to 377,005.69, 520,254.66 and 207,238.60

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Solution

The fourth proportional to 377,005.69, 520,254.66 and 207,238.60 is: 285,982.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,005.69 : 520,254.66 = 207,238.60 : x
  2. Step 2: Convert to fraction form
    377,005.69/520,254.66 = 207,238.60/x
  3. Step 3: Cross multiply
    377,005.69x = 520,254.66 × 207,238.60
  4. Step 4: Simplify right side
    377,005.69x = 107,816,847,381.88
  5. Step 5: Solve for x
    x = 107,816,847,381.88/377,005.69
  6. Step 6: Final answer
    x = 285,982.02

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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.