Home / 379,434.24-569,173.64-142,778.97

Finding the Fourth Proportional to 379,434.24, 569,173.64 and 142,778.97

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Solution

The fourth proportional to 379,434.24, 569,173.64 and 142,778.97 is: 214,176.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,434.24 : 569,173.64 = 142,778.97 : x
  2. Step 2: Convert to fraction form
    379,434.24/569,173.64 = 142,778.97/x
  3. Step 3: Cross multiply
    379,434.24x = 569,173.64 × 142,778.97
  4. Step 4: Simplify right side
    379,434.24x = 81,266,026,070.35
  5. Step 5: Solve for x
    x = 81,266,026,070.35/379,434.24
  6. Step 6: Final answer
    x = 214,176.84

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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.