Home / 382,200.36-527,438.50-212,450.28

Finding the Fourth Proportional to 382,200.36, 527,438.50 and 212,450.28

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Solution

The fourth proportional to 382,200.36, 527,438.50 and 212,450.28 is: 293,182.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,200.36 : 527,438.50 = 212,450.28 : x
  2. Step 2: Convert to fraction form
    382,200.36/527,438.50 = 212,450.28/x
  3. Step 3: Cross multiply
    382,200.36x = 527,438.50 × 212,450.28
  4. Step 4: Simplify right side
    382,200.36x = 112,054,457,007.78
  5. Step 5: Solve for x
    x = 112,054,457,007.78/382,200.36
  6. Step 6: Final answer
    x = 293,182.50

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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.