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Finding the Fourth Proportional to 370,153.41, 510,811.88 and 200,387.54

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Solution

The fourth proportional to 370,153.41, 510,811.88 and 200,387.54 is: 276,534.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,153.41 : 510,811.88 = 200,387.54 : x
  2. Step 2: Convert to fraction form
    370,153.41/510,811.88 = 200,387.54/x
  3. Step 3: Cross multiply
    370,153.41x = 510,811.88 × 200,387.54
  4. Step 4: Simplify right side
    370,153.41x = 102,360,332,479.98
  5. Step 5: Solve for x
    x = 102,360,332,479.98/370,153.41
  6. Step 6: Final answer
    x = 276,534.89

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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.