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Finding the Fourth Proportional to 219,759.19, 302,724.81 and 187,388.39

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Solution

The fourth proportional to 219,759.19, 302,724.81 and 187,388.39 is: 258,133.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,759.19 : 302,724.81 = 187,388.39 : x
  2. Step 2: Convert to fraction form
    219,759.19/302,724.81 = 187,388.39/x
  3. Step 3: Cross multiply
    219,759.19x = 302,724.81 × 187,388.39
  4. Step 4: Simplify right side
    219,759.19x = 56,727,114,758.96
  5. Step 5: Solve for x
    x = 56,727,114,758.96/219,759.19
  6. Step 6: Final answer
    x = 258,133.08

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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.