Home / 285,985.02-394,659.18-156,924.33

Finding the Fourth Proportional to 285,985.02, 394,659.18 and 156,924.33

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Solution

The fourth proportional to 285,985.02, 394,659.18 and 156,924.33 is: 216,555.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,985.02 : 394,659.18 = 156,924.33 : x
  2. Step 2: Convert to fraction form
    285,985.02/394,659.18 = 156,924.33/x
  3. Step 3: Cross multiply
    285,985.02x = 394,659.18 × 156,924.33
  4. Step 4: Simplify right side
    285,985.02x = 61,931,625,919.88
  5. Step 5: Solve for x
    x = 61,931,625,919.88/285,985.02
  6. Step 6: Final answer
    x = 216,555.49

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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.