Home / 377,007.20-520,256.73-207,240.10

Finding the Fourth Proportional to 377,007.20, 520,256.73 and 207,240.10

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Solution

The fourth proportional to 377,007.20, 520,256.73 and 207,240.10 is: 285,984.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,007.20 : 520,256.73 = 207,240.10 : x
  2. Step 2: Convert to fraction form
    377,007.20/520,256.73 = 207,240.10/x
  3. Step 3: Cross multiply
    377,007.20x = 520,256.73 × 207,240.10
  4. Step 4: Simplify right side
    377,007.20x = 107,818,056,750.87
  5. Step 5: Solve for x
    x = 107,818,056,750.87/377,007.20
  6. Step 6: Final answer
    x = 285,984.08

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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.