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Finding the Fourth Proportional to 370,579.32, 511,401.30 and 200,813.76

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Solution

The fourth proportional to 370,579.32, 511,401.30 and 200,813.76 is: 277,123.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,579.32 : 511,401.30 = 200,813.76 : x
  2. Step 2: Convert to fraction form
    370,579.32/511,401.30 = 200,813.76/x
  3. Step 3: Cross multiply
    370,579.32x = 511,401.30 × 200,813.76
  4. Step 4: Simplify right side
    370,579.32x = 102,696,417,921.89
  5. Step 5: Solve for x
    x = 102,696,417,921.89/370,579.32
  6. Step 6: Final answer
    x = 277,123.99

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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.