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Finding the Fourth Proportional to 243,037.25, 335,407.60 and 135,609.58

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Solution

The fourth proportional to 243,037.25, 335,407.60 and 135,609.58 is: 187,150.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,037.25 : 335,407.60 = 135,609.58 : x
  2. Step 2: Convert to fraction form
    243,037.25/335,407.60 = 135,609.58/x
  3. Step 3: Cross multiply
    243,037.25x = 335,407.60 × 135,609.58
  4. Step 4: Simplify right side
    243,037.25x = 45,484,483,764.81
  5. Step 5: Solve for x
    x = 45,484,483,764.81/243,037.25
  6. Step 6: Final answer
    x = 187,150.26

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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.