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Finding the Fourth Proportional to 370,475.01, 511,339.37 and 209,423.52

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Solution

The fourth proportional to 370,475.01, 511,339.37 and 209,423.52 is: 289,051.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,475.01 : 511,339.37 = 209,423.52 : x
  2. Step 2: Convert to fraction form
    370,475.01/511,339.37 = 209,423.52/x
  3. Step 3: Cross multiply
    370,475.01x = 511,339.37 × 209,423.52
  4. Step 4: Simplify right side
    370,475.01x = 107,086,489,732.87
  5. Step 5: Solve for x
    x = 107,086,489,732.87/370,475.01
  6. Step 6: Final answer
    x = 289,051.86

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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.