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Finding the Fourth Proportional to 152,563.35, 228,929.81 and 68,320.11

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Solution

The fourth proportional to 152,563.35, 228,929.81 and 68,320.11 is: 102,518.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,563.35 : 228,929.81 = 68,320.11 : x
  2. Step 2: Convert to fraction form
    152,563.35/228,929.81 = 68,320.11/x
  3. Step 3: Cross multiply
    152,563.35x = 228,929.81 × 68,320.11
  4. Step 4: Simplify right side
    152,563.35x = 15,640,509,801.48
  5. Step 5: Solve for x
    x = 15,640,509,801.48/152,563.35
  6. Step 6: Final answer
    x = 102,518.13

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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.