Home / 285,173.64-393,513.12-170,429.58

Finding the Fourth Proportional to 285,173.64, 393,513.12 and 170,429.58

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Solution

The fourth proportional to 285,173.64, 393,513.12 and 170,429.58 is: 235,176.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,173.64 : 393,513.12 = 170,429.58 : x
  2. Step 2: Convert to fraction form
    285,173.64/393,513.12 = 170,429.58/x
  3. Step 3: Cross multiply
    285,173.64x = 393,513.12 × 170,429.58
  4. Step 4: Simplify right side
    285,173.64x = 67,066,275,766.09
  5. Step 5: Solve for x
    x = 67,066,275,766.09/285,173.64
  6. Step 6: Final answer
    x = 235,176.98

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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.