Home / 256,666.19-385,064.89-106,856.69

Finding the Fourth Proportional to 256,666.19, 385,064.89 and 106,856.69

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Solution

The fourth proportional to 256,666.19, 385,064.89 and 106,856.69 is: 160,312.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,666.19 : 385,064.89 = 106,856.69 : x
  2. Step 2: Convert to fraction form
    256,666.19/385,064.89 = 106,856.69/x
  3. Step 3: Cross multiply
    256,666.19x = 385,064.89 × 106,856.69
  4. Step 4: Simplify right side
    256,666.19x = 41,146,757,388.15
  5. Step 5: Solve for x
    x = 41,146,757,388.15/256,666.19
  6. Step 6: Final answer
    x = 160,312.34

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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.