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Finding the Fourth Proportional to 356,856.30, 534,830.85 and 146,256.30

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Solution

The fourth proportional to 356,856.30, 534,830.85 and 146,256.30 is: 219,198.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,856.30 : 534,830.85 = 146,256.30 : x
  2. Step 2: Convert to fraction form
    356,856.30/534,830.85 = 146,256.30/x
  3. Step 3: Cross multiply
    356,856.30x = 534,830.85 × 146,256.30
  4. Step 4: Simplify right side
    356,856.30x = 78,222,381,246.86
  5. Step 5: Solve for x
    x = 78,222,381,246.86/356,856.30
  6. Step 6: Final answer
    x = 219,198.54

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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.