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Finding the Fourth Proportional to 418,346.76, 627,534.90 and 134,000.36

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Solution

The fourth proportional to 418,346.76, 627,534.90 and 134,000.36 is: 201,005.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,346.76 : 627,534.90 = 134,000.36 : x
  2. Step 2: Convert to fraction form
    418,346.76/627,534.90 = 134,000.36/x
  3. Step 3: Cross multiply
    418,346.76x = 627,534.90 × 134,000.36
  4. Step 4: Simplify right side
    418,346.76x = 84,089,902,512.56
  5. Step 5: Solve for x
    x = 84,089,902,512.56/418,346.76
  6. Step 6: Final answer
    x = 201,005.27

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1.5x scale

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.