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Finding the Fourth Proportional to 155,297.80, 232,995.84 and 55,455.76

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Solution

The fourth proportional to 155,297.80, 232,995.84 and 55,455.76 is: 83,201.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,297.80 : 232,995.84 = 55,455.76 : x
  2. Step 2: Convert to fraction form
    155,297.80/232,995.84 = 55,455.76/x
  3. Step 3: Cross multiply
    155,297.80x = 232,995.84 × 55,455.76
  4. Step 4: Simplify right side
    155,297.80x = 12,920,961,384.04
  5. Step 5: Solve for x
    x = 12,920,961,384.04/155,297.80
  6. Step 6: Final answer
    x = 83,201.19

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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.