Home / 255,314.15-352,326.66-142,136.90

Finding the Fourth Proportional to 255,314.15, 352,326.66 and 142,136.90

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Solution

The fourth proportional to 255,314.15, 352,326.66 and 142,136.90 is: 196,145.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,314.15 : 352,326.66 = 142,136.90 : x
  2. Step 2: Convert to fraction form
    255,314.15/352,326.66 = 142,136.90/x
  3. Step 3: Cross multiply
    255,314.15x = 352,326.66 × 142,136.90
  4. Step 4: Simplify right side
    255,314.15x = 50,078,617,478.12
  5. Step 5: Solve for x
    x = 50,078,617,478.12/255,314.15
  6. Step 6: Final answer
    x = 196,145.10

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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.