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Finding the Fourth Proportional to 219,371.65, 328,565.40 and 180,005.65

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Solution

The fourth proportional to 219,371.65, 328,565.40 and 180,005.65 is: 269,604.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,371.65 : 328,565.40 = 180,005.65 : x
  2. Step 2: Convert to fraction form
    219,371.65/328,565.40 = 180,005.65/x
  3. Step 3: Cross multiply
    219,371.65x = 328,565.40 × 180,005.65
  4. Step 4: Simplify right side
    219,371.65x = 59,143,628,394.51
  5. Step 5: Solve for x
    x = 59,143,628,394.51/219,371.65
  6. Step 6: Final answer
    x = 269,604.70

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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.