Home / 315,565.80-472,823.82-221,875.08

Finding the Fourth Proportional to 315,565.80, 472,823.82 and 221,875.08

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Solution

The fourth proportional to 315,565.80, 472,823.82 and 221,875.08 is: 332,443.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,565.80 : 472,823.82 = 221,875.08 : x
  2. Step 2: Convert to fraction form
    315,565.80/472,823.82 = 221,875.08/x
  3. Step 3: Cross multiply
    315,565.80x = 472,823.82 × 221,875.08
  4. Step 4: Simplify right side
    315,565.80x = 104,907,822,888.41
  5. Step 5: Solve for x
    x = 104,907,822,888.41/315,565.80
  6. Step 6: Final answer
    x = 332,443.58

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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.