Home / 243,742.77-336,321.45-136,313.55

Finding the Fourth Proportional to 243,742.77, 336,321.45 and 136,313.55

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Solution

The fourth proportional to 243,742.77, 336,321.45 and 136,313.55 is: 188,088.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,742.77 : 336,321.45 = 136,313.55 : x
  2. Step 2: Convert to fraction form
    243,742.77/336,321.45 = 136,313.55/x
  3. Step 3: Cross multiply
    243,742.77x = 336,321.45 × 136,313.55
  4. Step 4: Simplify right side
    243,742.77x = 45,845,170,790.65
  5. Step 5: Solve for x
    x = 45,845,170,790.65/243,742.77
  6. Step 6: Final answer
    x = 188,088.33

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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.