Home / 255,340.40-352,379.31-140,624.06

Finding the Fourth Proportional to 255,340.40, 352,379.31 and 140,624.06

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Solution

The fourth proportional to 255,340.40, 352,379.31 and 140,624.06 is: 194,066.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,340.40 : 352,379.31 = 140,624.06 : x
  2. Step 2: Convert to fraction form
    255,340.40/352,379.31 = 140,624.06/x
  3. Step 3: Cross multiply
    255,340.40x = 352,379.31 × 140,624.06
  4. Step 4: Simplify right side
    255,340.40x = 49,553,009,232.20
  5. Step 5: Solve for x
    x = 49,553,009,232.20/255,340.40
  6. Step 6: Final answer
    x = 194,066.47

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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.