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Finding the Fourth Proportional to 374,447.40, 561,671.10 and 290,466.60

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Solution

The fourth proportional to 374,447.40, 561,671.10 and 290,466.60 is: 435,699.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,447.40 : 561,671.10 = 290,466.60 : x
  2. Step 2: Convert to fraction form
    374,447.40/561,671.10 = 290,466.60/x
  3. Step 3: Cross multiply
    374,447.40x = 561,671.10 × 290,466.60
  4. Step 4: Simplify right side
    374,447.40x = 163,146,694,735.26
  5. Step 5: Solve for x
    x = 163,146,694,735.26/374,447.40
  6. Step 6: Final answer
    x = 435,699.90

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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.