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Finding the Fourth Proportional to 290,027.56, 400,240.76 and 162,705.89

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Solution

The fourth proportional to 290,027.56, 400,240.76 and 162,705.89 is: 224,535.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,027.56 : 400,240.76 = 162,705.89 : x
  2. Step 2: Convert to fraction form
    290,027.56/400,240.76 = 162,705.89/x
  3. Step 3: Cross multiply
    290,027.56x = 400,240.76 × 162,705.89
  4. Step 4: Simplify right side
    290,027.56x = 65,121,529,070.08
  5. Step 5: Solve for x
    x = 65,121,529,070.08/290,027.56
  6. Step 6: Final answer
    x = 224,535.66

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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.