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Finding the Fourth Proportional to 382,507.92, 527,860.94 and 210,428.28

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Solution

The fourth proportional to 382,507.92, 527,860.94 and 210,428.28 is: 290,391.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,507.92 : 527,860.94 = 210,428.28 : x
  2. Step 2: Convert to fraction form
    382,507.92/527,860.94 = 210,428.28/x
  3. Step 3: Cross multiply
    382,507.92x = 527,860.94 × 210,428.28
  4. Step 4: Simplify right side
    382,507.92x = 111,076,868,631.24
  5. Step 5: Solve for x
    x = 111,076,868,631.24/382,507.92
  6. Step 6: Final answer
    x = 290,391.03

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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.