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Finding the Fourth Proportional to 384,957.69, 531,245.04 and 212,887.23

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Solution

The fourth proportional to 384,957.69, 531,245.04 and 212,887.23 is: 293,786.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,957.69 : 531,245.04 = 212,887.23 : x
  2. Step 2: Convert to fraction form
    384,957.69/531,245.04 = 212,887.23/x
  3. Step 3: Cross multiply
    384,957.69x = 531,245.04 × 212,887.23
  4. Step 4: Simplify right side
    384,957.69x = 113,095,282,360.61
  5. Step 5: Solve for x
    x = 113,095,282,360.61/384,957.69
  6. Step 6: Final answer
    x = 293,786.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.