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Finding the Fourth Proportional to 152,505.60, 228,801.60 and 47,335.20

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Solution

The fourth proportional to 152,505.60, 228,801.60 and 47,335.20 is: 71,016.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,505.60 : 228,801.60 = 47,335.20 : x
  2. Step 2: Convert to fraction form
    152,505.60/228,801.60 = 47,335.20/x
  3. Step 3: Cross multiply
    152,505.60x = 228,801.60 × 47,335.20
  4. Step 4: Simplify right side
    152,505.60x = 10,830,369,496.32
  5. Step 5: Solve for x
    x = 10,830,369,496.32/152,505.60
  6. Step 6: Final answer
    x = 71,016.21

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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.