Home / 370,887.32-511,835.65-209,739.14

Finding the Fourth Proportional to 370,887.32, 511,835.65 and 209,739.14

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Solution

The fourth proportional to 370,887.32, 511,835.65 and 209,739.14 is: 289,446.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,887.32 : 511,835.65 = 209,739.14 : x
  2. Step 2: Convert to fraction form
    370,887.32/511,835.65 = 209,739.14/x
  3. Step 3: Cross multiply
    370,887.32x = 511,835.65 × 209,739.14
  4. Step 4: Simplify right side
    370,887.32x = 107,351,967,888.20
  5. Step 5: Solve for x
    x = 107,351,967,888.20/370,887.32
  6. Step 6: Final answer
    x = 289,446.31

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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.