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Finding the Fourth Proportional to 260,524.16, 390,473.76 and 134,224.64

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Solution

The fourth proportional to 260,524.16, 390,473.76 and 134,224.64 is: 201,175.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,524.16 : 390,473.76 = 134,224.64 : x
  2. Step 2: Convert to fraction form
    260,524.16/390,473.76 = 134,224.64/x
  3. Step 3: Cross multiply
    260,524.16x = 390,473.76 × 134,224.64
  4. Step 4: Simplify right side
    260,524.16x = 52,411,199,865.45
  5. Step 5: Solve for x
    x = 52,411,199,865.45/260,524.16
  6. Step 6: Final answer
    x = 201,175.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.