Home / 285,198.15-393,571.98-156,148.35

Finding the Fourth Proportional to 285,198.15, 393,571.98 and 156,148.35

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Solution

The fourth proportional to 285,198.15, 393,571.98 and 156,148.35 is: 215,483.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,198.15 : 393,571.98 = 156,148.35 : x
  2. Step 2: Convert to fraction form
    285,198.15/393,571.98 = 156,148.35/x
  3. Step 3: Cross multiply
    285,198.15x = 393,571.98 × 156,148.35
  4. Step 4: Simplify right side
    285,198.15x = 61,455,615,283.23
  5. Step 5: Solve for x
    x = 61,455,615,283.23/285,198.15
  6. Step 6: Final answer
    x = 215,483.92

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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.