Home / 360,921.32-497,956.90-209,989.16

Finding the Fourth Proportional to 360,921.32, 497,956.90 and 209,989.16

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Solution

The fourth proportional to 360,921.32, 497,956.90 and 209,989.16 is: 289,718.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,921.32 : 497,956.90 = 209,989.16 : x
  2. Step 2: Convert to fraction form
    360,921.32/497,956.90 = 209,989.16/x
  3. Step 3: Cross multiply
    360,921.32x = 497,956.90 × 209,989.16
  4. Step 4: Simplify right side
    360,921.32x = 104,565,551,147.20
  5. Step 5: Solve for x
    x = 104,565,551,147.20/360,921.32
  6. Step 6: Final answer
    x = 289,718.41

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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.