Home / 377,152.08-520,426.21-215,997.51

Finding the Fourth Proportional to 377,152.08, 520,426.21 and 215,997.51

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Solution

The fourth proportional to 377,152.08, 520,426.21 and 215,997.51 is: 298,051.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,152.08 : 520,426.21 = 215,997.51 : x
  2. Step 2: Convert to fraction form
    377,152.08/520,426.21 = 215,997.51/x
  3. Step 3: Cross multiply
    377,152.08x = 520,426.21 × 215,997.51
  4. Step 4: Simplify right side
    377,152.08x = 112,410,765,498.74
  5. Step 5: Solve for x
    x = 112,410,765,498.74/377,152.08
  6. Step 6: Final answer
    x = 298,051.56

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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.