Home / 210,346.30-315,628.80-92,029.60

Finding the Fourth Proportional to 210,346.30, 315,628.80 and 92,029.60

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Solution

The fourth proportional to 210,346.30, 315,628.80 and 92,029.60 is: 138,092.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,346.30 : 315,628.80 = 92,029.60 : x
  2. Step 2: Convert to fraction form
    210,346.30/315,628.80 = 92,029.60/x
  3. Step 3: Cross multiply
    210,346.30x = 315,628.80 × 92,029.60
  4. Step 4: Simplify right side
    210,346.30x = 29,047,192,212.48
  5. Step 5: Solve for x
    x = 29,047,192,212.48/210,346.30
  6. Step 6: Final answer
    x = 138,092.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.