Home / 285,107.42-393,460.58-157,783.04

Finding the Fourth Proportional to 285,107.42, 393,460.58 and 157,783.04

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Solution

The fourth proportional to 285,107.42, 393,460.58 and 157,783.04 is: 217,747.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,107.42 : 393,460.58 = 157,783.04 : x
  2. Step 2: Convert to fraction form
    285,107.42/393,460.58 = 157,783.04/x
  3. Step 3: Cross multiply
    285,107.42x = 393,460.58 × 157,783.04
  4. Step 4: Simplify right side
    285,107.42x = 62,081,406,432.56
  5. Step 5: Solve for x
    x = 62,081,406,432.56/285,107.42
  6. Step 6: Final answer
    x = 217,747.42

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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.