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Finding the Fourth Proportional to 356,417.60, 491,856.70 and 195,282.96

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Solution

The fourth proportional to 356,417.60, 491,856.70 and 195,282.96 is: 269,490.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,417.60 : 491,856.70 = 195,282.96 : x
  2. Step 2: Convert to fraction form
    356,417.60/491,856.70 = 195,282.96/x
  3. Step 3: Cross multiply
    356,417.60x = 491,856.70 × 195,282.96
  4. Step 4: Simplify right side
    356,417.60x = 96,051,232,271.83
  5. Step 5: Solve for x
    x = 96,051,232,271.83/356,417.60
  6. Step 6: Final answer
    x = 269,490.71

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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.