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Finding the Fourth Proportional to 242,607.72, 334,794.21 and 135,175.47

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Solution

The fourth proportional to 242,607.72, 334,794.21 and 135,175.47 is: 186,539.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,607.72 : 334,794.21 = 135,175.47 : x
  2. Step 2: Convert to fraction form
    242,607.72/334,794.21 = 135,175.47/x
  3. Step 3: Cross multiply
    242,607.72x = 334,794.21 × 135,175.47
  4. Step 4: Simplify right side
    242,607.72x = 45,255,964,690.03
  5. Step 5: Solve for x
    x = 45,255,964,690.03/242,607.72
  6. Step 6: Final answer
    x = 186,539.67

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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.