Home / 210,997.32-291,176.76-115,509.96

Finding the Fourth Proportional to 210,997.32, 291,176.76 and 115,509.96

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Solution

The fourth proportional to 210,997.32, 291,176.76 and 115,509.96 is: 159,404.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,997.32 : 291,176.76 = 115,509.96 : x
  2. Step 2: Convert to fraction form
    210,997.32/291,176.76 = 115,509.96/x
  3. Step 3: Cross multiply
    210,997.32x = 291,176.76 × 115,509.96
  4. Step 4: Simplify right side
    210,997.32x = 33,633,815,900.53
  5. Step 5: Solve for x
    x = 33,633,815,900.53/210,997.32
  6. Step 6: Final answer
    x = 159,404.00

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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.