Home / 279,185.37-385,344.24-158,397.36

Finding the Fourth Proportional to 279,185.37, 385,344.24 and 158,397.36

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Solution

The fourth proportional to 279,185.37, 385,344.24 and 158,397.36 is: 218,627.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,185.37 : 385,344.24 = 158,397.36 : x
  2. Step 2: Convert to fraction form
    279,185.37/385,344.24 = 158,397.36/x
  3. Step 3: Cross multiply
    279,185.37x = 385,344.24 × 158,397.36
  4. Step 4: Simplify right side
    279,185.37x = 61,037,510,307.21
  5. Step 5: Solve for x
    x = 61,037,510,307.21/279,185.37
  6. Step 6: Final answer
    x = 218,627.18

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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.