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Finding the Fourth Proportional to 432,174.80, 648,646.20 and 254,459.60

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Solution

The fourth proportional to 432,174.80, 648,646.20 and 254,459.60 is: 381,915.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,174.80 : 648,646.20 = 254,459.60 : x
  2. Step 2: Convert to fraction form
    432,174.80/648,646.20 = 254,459.60/x
  3. Step 3: Cross multiply
    432,174.80x = 648,646.20 × 254,459.60
  4. Step 4: Simplify right side
    432,174.80x = 165,054,252,593.52
  5. Step 5: Solve for x
    x = 165,054,252,593.52/432,174.80
  6. Step 6: Final answer
    x = 381,915.49

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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.