Home / 255,389.41-352,434.54-140,665.87

Finding the Fourth Proportional to 255,389.41, 352,434.54 and 140,665.87

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Solution

The fourth proportional to 255,389.41, 352,434.54 and 140,665.87 is: 194,117.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,389.41 : 352,434.54 = 140,665.87 : x
  2. Step 2: Convert to fraction form
    255,389.41/352,434.54 = 140,665.87/x
  3. Step 3: Cross multiply
    255,389.41x = 352,434.54 × 140,665.87
  4. Step 4: Simplify right side
    255,389.41x = 49,575,511,187.15
  5. Step 5: Solve for x
    x = 49,575,511,187.15/255,389.41
  6. Step 6: Final answer
    x = 194,117.33

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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.