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Finding the Fourth Proportional to 415,304.60, 623,648.10 and 228,450.20

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Solution

The fourth proportional to 415,304.60, 623,648.10 and 228,450.20 is: 343,055.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,304.60 : 623,648.10 = 228,450.20 : x
  2. Step 2: Convert to fraction form
    415,304.60/623,648.10 = 228,450.20/x
  3. Step 3: Cross multiply
    415,304.60x = 623,648.10 × 228,450.20
  4. Step 4: Simplify right side
    415,304.60x = 142,472,533,174.62
  5. Step 5: Solve for x
    x = 142,472,533,174.62/415,304.60
  6. Step 6: Final answer
    x = 343,055.51

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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.