Home / 257,148.13-385,783.35-107,305.15

Finding the Fourth Proportional to 257,148.13, 385,783.35 and 107,305.15

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Solution

The fourth proportional to 257,148.13, 385,783.35 and 107,305.15 is: 160,983.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,148.13 : 385,783.35 = 107,305.15 : x
  2. Step 2: Convert to fraction form
    257,148.13/385,783.35 = 107,305.15/x
  3. Step 3: Cross multiply
    257,148.13x = 385,783.35 × 107,305.15
  4. Step 4: Simplify right side
    257,148.13x = 41,396,540,239.25
  5. Step 5: Solve for x
    x = 41,396,540,239.25/257,148.13
  6. Step 6: Final answer
    x = 160,983.24

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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.