Home / 256,991.16-385,265.04-123,688.04

Finding the Fourth Proportional to 256,991.16, 385,265.04 and 123,688.04

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Solution

The fourth proportional to 256,991.16, 385,265.04 and 123,688.04 is: 185,425.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,991.16 : 385,265.04 = 123,688.04 : x
  2. Step 2: Convert to fraction form
    256,991.16/385,265.04 = 123,688.04/x
  3. Step 3: Cross multiply
    256,991.16x = 385,265.04 × 123,688.04
  4. Step 4: Simplify right side
    256,991.16x = 47,652,677,678.12
  5. Step 5: Solve for x
    x = 47,652,677,678.12/256,991.16
  6. Step 6: Final answer
    x = 185,425.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.