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Finding the Fourth Proportional to 377,523.96, 521,004.48 and 216,405.78

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Solution

The fourth proportional to 377,523.96, 521,004.48 and 216,405.78 is: 298,652.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,523.96 : 521,004.48 = 216,405.78 : x
  2. Step 2: Convert to fraction form
    377,523.96/521,004.48 = 216,405.78/x
  3. Step 3: Cross multiply
    377,523.96x = 521,004.48 × 216,405.78
  4. Step 4: Simplify right side
    377,523.96x = 112,748,380,877.89
  5. Step 5: Solve for x
    x = 112,748,380,877.89/377,523.96
  6. Step 6: Final answer
    x = 298,652.25

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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.