Home / 257,336.40-386,429.04-173,634.24

Finding the Fourth Proportional to 257,336.40, 386,429.04 and 173,634.24

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Solution

The fourth proportional to 257,336.40, 386,429.04 and 173,634.24 is: 260,737.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,336.40 : 386,429.04 = 173,634.24 : x
  2. Step 2: Convert to fraction form
    257,336.40/386,429.04 = 173,634.24/x
  3. Step 3: Cross multiply
    257,336.40x = 386,429.04 × 173,634.24
  4. Step 4: Simplify right side
    257,336.40x = 67,097,312,674.33
  5. Step 5: Solve for x
    x = 67,097,312,674.33/257,336.40
  6. Step 6: Final answer
    x = 260,737.75

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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.