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Finding the Fourth Proportional to 538,420.60, 807,630.90 and 164,443.60

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Solution

The fourth proportional to 538,420.60, 807,630.90 and 164,443.60 is: 246,665.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,420.60 : 807,630.90 = 164,443.60 : x
  2. Step 2: Convert to fraction form
    538,420.60/807,630.90 = 164,443.60/x
  3. Step 3: Cross multiply
    538,420.60x = 807,630.90 × 164,443.60
  4. Step 4: Simplify right side
    538,420.60x = 132,809,732,667.24
  5. Step 5: Solve for x
    x = 132,809,732,667.24/538,420.60
  6. Step 6: Final answer
    x = 246,665.40

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Similar ratio
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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.