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Finding the Fourth Proportional to 370,475.61, 511,256.85 and 200,709.72

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Solution

The fourth proportional to 370,475.61, 511,256.85 and 200,709.72 is: 276,979.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,475.61 : 511,256.85 = 200,709.72 : x
  2. Step 2: Convert to fraction form
    370,475.61/511,256.85 = 200,709.72/x
  3. Step 3: Cross multiply
    370,475.61x = 511,256.85 × 200,709.72
  4. Step 4: Simplify right side
    370,475.61x = 102,614,219,211.58
  5. Step 5: Solve for x
    x = 102,614,219,211.58/370,475.61
  6. Step 6: Final answer
    x = 276,979.69

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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.