Home / 285,180.04-393,521.65-170,435.71

Finding the Fourth Proportional to 285,180.04, 393,521.65 and 170,435.71

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Solution

The fourth proportional to 285,180.04, 393,521.65 and 170,435.71 is: 235,185.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,180.04 : 393,521.65 = 170,435.71 : x
  2. Step 2: Convert to fraction form
    285,180.04/393,521.65 = 170,435.71/x
  3. Step 3: Cross multiply
    285,180.04x = 393,521.65 × 170,435.71
  4. Step 4: Simplify right side
    285,180.04x = 67,070,141,818.12
  5. Step 5: Solve for x
    x = 67,070,141,818.12/285,180.04
  6. Step 6: Final answer
    x = 235,185.26

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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.