Home / 257,815.23-386,804.85-163,632.07

Finding the Fourth Proportional to 257,815.23, 386,804.85 and 163,632.07

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Solution

The fourth proportional to 257,815.23, 386,804.85 and 163,632.07 is: 245,500.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,815.23 : 386,804.85 = 163,632.07 : x
  2. Step 2: Convert to fraction form
    257,815.23/386,804.85 = 163,632.07/x
  3. Step 3: Cross multiply
    257,815.23x = 386,804.85 × 163,632.07
  4. Step 4: Simplify right side
    257,815.23x = 63,293,678,291.54
  5. Step 5: Solve for x
    x = 63,293,678,291.54/257,815.23
  6. Step 6: Final answer
    x = 245,500.15

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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.