Home / 255,431.72-352,523.40-140,722.10

Finding the Fourth Proportional to 255,431.72, 352,523.40 and 140,722.10

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Solution

The fourth proportional to 255,431.72, 352,523.40 and 140,722.10 is: 194,211.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,431.72 : 352,523.40 = 140,722.10 : x
  2. Step 2: Convert to fraction form
    255,431.72/352,523.40 = 140,722.10/x
  3. Step 3: Cross multiply
    255,431.72x = 352,523.40 × 140,722.10
  4. Step 4: Simplify right side
    255,431.72x = 49,607,833,147.14
  5. Step 5: Solve for x
    x = 49,607,833,147.14/255,431.72
  6. Step 6: Final answer
    x = 194,211.72

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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.