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Finding the Fourth Proportional to 434,580, 651,493.26 and 168,157.20

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Solution

The fourth proportional to 434,580, 651,493.26 and 168,157.20 is: 252,090.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,580 : 651,493.26 = 168,157.20 : x
  2. Step 2: Convert to fraction form
    434,580/651,493.26 = 168,157.20/x
  3. Step 3: Cross multiply
    434,580x = 651,493.26 × 168,157.20
  4. Step 4: Simplify right side
    434,580x = 109,553,282,420.47
  5. Step 5: Solve for x
    x = 109,553,282,420.47/434,580
  6. Step 6: Final answer
    x = 252,090.02

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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.