Home / 379,419.10-523,628.23-216,082.55

Finding the Fourth Proportional to 379,419.10, 523,628.23 and 216,082.55

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Solution

The fourth proportional to 379,419.10, 523,628.23 and 216,082.55 is: 298,210.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,419.10 : 523,628.23 = 216,082.55 : x
  2. Step 2: Convert to fraction form
    379,419.10/523,628.23 = 216,082.55/x
  3. Step 3: Cross multiply
    379,419.10x = 523,628.23 × 216,082.55
  4. Step 4: Simplify right side
    379,419.10x = 113,146,921,699.55
  5. Step 5: Solve for x
    x = 113,146,921,699.55/379,419.10
  6. Step 6: Final answer
    x = 298,210.93

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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.