Home / 319,947.12-479,946.18-109,586.88

Finding the Fourth Proportional to 319,947.12, 479,946.18 and 109,586.88

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Solution

The fourth proportional to 319,947.12, 479,946.18 and 109,586.88 is: 164,389.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,947.12 : 479,946.18 = 109,586.88 : x
  2. Step 2: Convert to fraction form
    319,947.12/479,946.18 = 109,586.88/x
  3. Step 3: Cross multiply
    319,947.12x = 479,946.18 × 109,586.88
  4. Step 4: Simplify right side
    319,947.12x = 52,595,804,434.12
  5. Step 5: Solve for x
    x = 52,595,804,434.12/319,947.12
  6. Step 6: Final answer
    x = 164,389.05

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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.