Home / 285,188.10-393,559.58-157,863.69

Finding the Fourth Proportional to 285,188.10, 393,559.58 and 157,863.69

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Solution

The fourth proportional to 285,188.10, 393,559.58 and 157,863.69 is: 217,851.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,188.10 : 393,559.58 = 157,863.69 : x
  2. Step 2: Convert to fraction form
    285,188.10/393,559.58 = 157,863.69/x
  3. Step 3: Cross multiply
    285,188.10x = 393,559.58 × 157,863.69
  4. Step 4: Simplify right side
    285,188.10x = 62,128,767,533.65
  5. Step 5: Solve for x
    x = 62,128,767,533.65/285,188.10
  6. Step 6: Final answer
    x = 217,851.89

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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.