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Finding the Fourth Proportional to 225,471.84, 310,443 and 191,409.72

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Solution

The fourth proportional to 225,471.84, 310,443 and 191,409.72 is: 263,544.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,471.84 : 310,443 = 191,409.72 : x
  2. Step 2: Convert to fraction form
    225,471.84/310,443 = 191,409.72/x
  3. Step 3: Cross multiply
    225,471.84x = 310,443 × 191,409.72
  4. Step 4: Simplify right side
    225,471.84x = 59,421,807,705.96
  5. Step 5: Solve for x
    x = 59,421,807,705.96/225,471.84
  6. Step 6: Final answer
    x = 263,544.25

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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.