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Finding the Fourth Proportional to 370,276.78, 510,979.04 and 200,510.90

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Solution

The fourth proportional to 370,276.78, 510,979.04 and 200,510.90 is: 276,703.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,276.78 : 510,979.04 = 200,510.90 : x
  2. Step 2: Convert to fraction form
    370,276.78/510,979.04 = 200,510.90/x
  3. Step 3: Cross multiply
    370,276.78x = 510,979.04 × 200,510.90
  4. Step 4: Simplify right side
    370,276.78x = 102,456,867,191.54
  5. Step 5: Solve for x
    x = 102,456,867,191.54/370,276.78
  6. Step 6: Final answer
    x = 276,703.46

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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.