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Finding the Fourth Proportional to 377,181.35, 520,510.42 and 207,415.47

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Solution

The fourth proportional to 377,181.35, 520,510.42 and 207,415.47 is: 286,233.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,181.35 : 520,510.42 = 207,415.47 : x
  2. Step 2: Convert to fraction form
    377,181.35/520,510.42 = 207,415.47/x
  3. Step 3: Cross multiply
    377,181.35x = 520,510.42 × 207,415.47
  4. Step 4: Simplify right side
    377,181.35x = 107,961,913,404.20
  5. Step 5: Solve for x
    x = 107,961,913,404.20/377,181.35
  6. Step 6: Final answer
    x = 286,233.43

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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.