Home / 382,478.04-527,812.20-212,708.52

Finding the Fourth Proportional to 382,478.04, 527,812.20 and 212,708.52

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Solution

The fourth proportional to 382,478.04, 527,812.20 and 212,708.52 is: 293,533.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,478.04 : 527,812.20 = 212,708.52 : x
  2. Step 2: Convert to fraction form
    382,478.04/527,812.20 = 212,708.52/x
  3. Step 3: Cross multiply
    382,478.04x = 527,812.20 × 212,708.52
  4. Step 4: Simplify right side
    382,478.04x = 112,270,151,899.94
  5. Step 5: Solve for x
    x = 112,270,151,899.94/382,478.04
  6. Step 6: Final answer
    x = 293,533.59

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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.