Home / 256,601.10-384,901.65-79,092.30

Finding the Fourth Proportional to 256,601.10, 384,901.65 and 79,092.30

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Solution

The fourth proportional to 256,601.10, 384,901.65 and 79,092.30 is: 118,638.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,601.10 : 384,901.65 = 79,092.30 : x
  2. Step 2: Convert to fraction form
    256,601.10/384,901.65 = 79,092.30/x
  3. Step 3: Cross multiply
    256,601.10x = 384,901.65 × 79,092.30
  4. Step 4: Simplify right side
    256,601.10x = 30,442,756,772.30
  5. Step 5: Solve for x
    x = 30,442,756,772.30/256,601.10
  6. Step 6: Final answer
    x = 118,638.45

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1.5x scale

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.