Home / 279,350.08-385,511.80-158,496.46

Finding the Fourth Proportional to 279,350.08, 385,511.80 and 158,496.46

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Solution

The fourth proportional to 279,350.08, 385,511.80 and 158,496.46 is: 218,730.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,350.08 : 385,511.80 = 158,496.46 : x
  2. Step 2: Convert to fraction form
    279,350.08/385,511.80 = 158,496.46/x
  3. Step 3: Cross multiply
    279,350.08x = 385,511.80 × 158,496.46
  4. Step 4: Simplify right side
    279,350.08x = 61,102,255,588.23
  5. Step 5: Solve for x
    x = 61,102,255,588.23/279,350.08
  6. Step 6: Final answer
    x = 218,730.05

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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.