Home / 319,047.30-478,538.55-108,682.20

Finding the Fourth Proportional to 319,047.30, 478,538.55 and 108,682.20

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Solution

The fourth proportional to 319,047.30, 478,538.55 and 108,682.20 is: 163,012.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,047.30 : 478,538.55 = 108,682.20 : x
  2. Step 2: Convert to fraction form
    319,047.30/478,538.55 = 108,682.20/x
  3. Step 3: Cross multiply
    319,047.30x = 478,538.55 × 108,682.20
  4. Step 4: Simplify right side
    319,047.30x = 52,008,622,398.81
  5. Step 5: Solve for x
    x = 52,008,622,398.81/319,047.30
  6. Step 6: Final answer
    x = 163,012.26

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1.5x scale

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.