Home / 248,128.13-342,494.85-140,769.51

Finding the Fourth Proportional to 248,128.13, 342,494.85 and 140,769.51

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Solution

The fourth proportional to 248,128.13, 342,494.85 and 140,769.51 is: 194,306.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,128.13 : 342,494.85 = 140,769.51 : x
  2. Step 2: Convert to fraction form
    248,128.13/342,494.85 = 140,769.51/x
  3. Step 3: Cross multiply
    248,128.13x = 342,494.85 × 140,769.51
  4. Step 4: Simplify right side
    248,128.13x = 48,212,832,212.02
  5. Step 5: Solve for x
    x = 48,212,832,212.02/248,128.13
  6. Step 6: Final answer
    x = 194,306.20

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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.