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Finding the Fourth Proportional to 370,244.49, 510,937.80 and 200,478.21

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Solution

The fourth proportional to 370,244.49, 510,937.80 and 200,478.21 is: 276,660.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,244.49 : 510,937.80 = 200,478.21 : x
  2. Step 2: Convert to fraction form
    370,244.49/510,937.80 = 200,478.21/x
  3. Step 3: Cross multiply
    370,244.49x = 510,937.80 × 200,478.21
  4. Step 4: Simplify right side
    370,244.49x = 102,431,895,565.34
  5. Step 5: Solve for x
    x = 102,431,895,565.34/370,244.49
  6. Step 6: Final answer
    x = 276,660.15

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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.