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Finding the Fourth Proportional to 370,369.59, 511,151.52 and 209,235.02

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Solution

The fourth proportional to 370,369.59, 511,151.52 and 209,235.02 is: 288,767.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,369.59 : 511,151.52 = 209,235.02 : x
  2. Step 2: Convert to fraction form
    370,369.59/511,151.52 = 209,235.02/x
  3. Step 3: Cross multiply
    370,369.59x = 511,151.52 × 209,235.02
  4. Step 4: Simplify right side
    370,369.59x = 106,950,796,739.10
  5. Step 5: Solve for x
    x = 106,950,796,739.10/370,369.59
  6. Step 6: Final answer
    x = 288,767.76

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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.