Home / 286,682.96-395,565-173,513.36

Finding the Fourth Proportional to 286,682.96, 395,565 and 173,513.36

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Solution

The fourth proportional to 286,682.96, 395,565 and 173,513.36 is: 239,413.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,682.96 : 395,565 = 173,513.36 : x
  2. Step 2: Convert to fraction form
    286,682.96/395,565 = 173,513.36/x
  3. Step 3: Cross multiply
    286,682.96x = 395,565 × 173,513.36
  4. Step 4: Simplify right side
    286,682.96x = 68,635,812,248.40
  5. Step 5: Solve for x
    x = 68,635,812,248.40/286,682.96
  6. Step 6: Final answer
    x = 239,413.64

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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.