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Finding the Fourth Proportional to 152,604.78, 228,830.58 and 72,618.90

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Solution

The fourth proportional to 152,604.78, 228,830.58 and 72,618.90 is: 108,891.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,604.78 : 228,830.58 = 72,618.90 : x
  2. Step 2: Convert to fraction form
    152,604.78/228,830.58 = 72,618.90/x
  3. Step 3: Cross multiply
    152,604.78x = 228,830.58 × 72,618.90
  4. Step 4: Simplify right side
    152,604.78x = 16,617,425,005.96
  5. Step 5: Solve for x
    x = 16,617,425,005.96/152,604.78
  6. Step 6: Final answer
    x = 108,891.90

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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.