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Finding the Fourth Proportional to 377,005.68, 520,268.40 and 207,240.84

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Solution

The fourth proportional to 377,005.68, 520,268.40 and 207,240.84 is: 285,992.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,005.68 : 520,268.40 = 207,240.84 : x
  2. Step 2: Convert to fraction form
    377,005.68/520,268.40 = 207,240.84/x
  3. Step 3: Cross multiply
    377,005.68x = 520,268.40 × 207,240.84
  4. Step 4: Simplify right side
    377,005.68x = 107,820,860,241.46
  5. Step 5: Solve for x
    x = 107,820,860,241.46/377,005.68
  6. Step 6: Final answer
    x = 285,992.67

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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.