Home / 318,927.08-478,449.48-131,953.16

Finding the Fourth Proportional to 318,927.08, 478,449.48 and 131,953.16

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Solution

The fourth proportional to 318,927.08, 478,449.48 and 131,953.16 is: 197,954.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,927.08 : 478,449.48 = 131,953.16 : x
  2. Step 2: Convert to fraction form
    318,927.08/478,449.48 = 131,953.16/x
  3. Step 3: Cross multiply
    318,927.08x = 478,449.48 × 131,953.16
  4. Step 4: Simplify right side
    318,927.08x = 63,132,920,786.36
  5. Step 5: Solve for x
    x = 63,132,920,786.36/318,927.08
  6. Step 6: Final answer
    x = 197,954.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.