Home / 384,828.49-531,017.32-212,723.28

Finding the Fourth Proportional to 384,828.49, 531,017.32 and 212,723.28

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Solution

The fourth proportional to 384,828.49, 531,017.32 and 212,723.28 is: 293,532.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,828.49 : 531,017.32 = 212,723.28 : x
  2. Step 2: Convert to fraction form
    384,828.49/531,017.32 = 212,723.28/x
  3. Step 3: Cross multiply
    384,828.49x = 531,017.32 × 212,723.28
  4. Step 4: Simplify right side
    384,828.49x = 112,959,745,914.26
  5. Step 5: Solve for x
    x = 112,959,745,914.26/384,828.49
  6. Step 6: Final answer
    x = 293,532.70

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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.