Home / 279,669.85-385,942.39-152,345.48

Finding the Fourth Proportional to 279,669.85, 385,942.39 and 152,345.48

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Solution

The fourth proportional to 279,669.85, 385,942.39 and 152,345.48 is: 210,235.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,669.85 : 385,942.39 = 152,345.48 : x
  2. Step 2: Convert to fraction form
    279,669.85/385,942.39 = 152,345.48/x
  3. Step 3: Cross multiply
    279,669.85x = 385,942.39 × 152,345.48
  4. Step 4: Simplify right side
    279,669.85x = 58,796,576,346.32
  5. Step 5: Solve for x
    x = 58,796,576,346.32/279,669.85
  6. Step 6: Final answer
    x = 210,235.66

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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.