Home / 377,153.08-520,427.60-215,998.51

Finding the Fourth Proportional to 377,153.08, 520,427.60 and 215,998.51

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Solution

The fourth proportional to 377,153.08, 520,427.60 and 215,998.51 is: 298,052.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,153.08 : 520,427.60 = 215,998.51 : x
  2. Step 2: Convert to fraction form
    377,153.08/520,427.60 = 215,998.51/x
  3. Step 3: Cross multiply
    377,153.08x = 520,427.60 × 215,998.51
  4. Step 4: Simplify right side
    377,153.08x = 112,411,582,480.75
  5. Step 5: Solve for x
    x = 112,411,582,480.75/377,153.08
  6. Step 6: Final answer
    x = 298,052.94

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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.