Home / 377,208.12-520,536.81-207,442.25

Finding the Fourth Proportional to 377,208.12, 520,536.81 and 207,442.25

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Solution

The fourth proportional to 377,208.12, 520,536.81 and 207,442.25 is: 286,264.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,208.12 : 520,536.81 = 207,442.25 : x
  2. Step 2: Convert to fraction form
    377,208.12/520,536.81 = 207,442.25/x
  3. Step 3: Cross multiply
    377,208.12x = 520,536.81 × 207,442.25
  4. Step 4: Simplify right side
    377,208.12x = 107,981,327,201.46
  5. Step 5: Solve for x
    x = 107,981,327,201.46/377,208.12
  6. Step 6: Final answer
    x = 286,264.59

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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.