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Finding the Fourth Proportional to 242,781.44, 335,038.60 and 135,349.32

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Solution

The fourth proportional to 242,781.44, 335,038.60 and 135,349.32 is: 186,782.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,781.44 : 335,038.60 = 135,349.32 : x
  2. Step 2: Convert to fraction form
    242,781.44/335,038.60 = 135,349.32/x
  3. Step 3: Cross multiply
    242,781.44x = 335,038.60 × 135,349.32
  4. Step 4: Simplify right side
    242,781.44x = 45,347,246,683.75
  5. Step 5: Solve for x
    x = 45,347,246,683.75/242,781.44
  6. Step 6: Final answer
    x = 186,782.18

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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.