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Finding the Fourth Proportional to 356,988.04, 535,141.86 and 120,208.84

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Solution

The fourth proportional to 356,988.04, 535,141.86 and 120,208.84 is: 180,198.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,988.04 : 535,141.86 = 120,208.84 : x
  2. Step 2: Convert to fraction form
    356,988.04/535,141.86 = 120,208.84/x
  3. Step 3: Cross multiply
    356,988.04x = 535,141.86 × 120,208.84
  4. Step 4: Simplify right side
    356,988.04x = 64,328,782,226.04
  5. Step 5: Solve for x
    x = 64,328,782,226.04/356,988.04
  6. Step 6: Final answer
    x = 180,198.70

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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.