Home / 255,409.90-352,465.67-140,688.19

Finding the Fourth Proportional to 255,409.90, 352,465.67 and 140,688.19

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Solution

The fourth proportional to 255,409.90, 352,465.67 and 140,688.19 is: 194,149.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,409.90 : 352,465.67 = 140,688.19 : x
  2. Step 2: Convert to fraction form
    255,409.90/352,465.67 = 140,688.19/x
  3. Step 3: Cross multiply
    255,409.90x = 352,465.67 × 140,688.19
  4. Step 4: Simplify right side
    255,409.90x = 49,587,756,952.52
  5. Step 5: Solve for x
    x = 49,587,756,952.52/255,409.90
  6. Step 6: Final answer
    x = 194,149.71

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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.