Home / 340,939.88-512,530.95-316,277.66

Finding the Fourth Proportional to 340,939.88, 512,530.95 and 316,277.66

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Solution

The fourth proportional to 340,939.88, 512,530.95 and 316,277.66 is: 475,456.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,939.88 : 512,530.95 = 316,277.66 : x
  2. Step 2: Convert to fraction form
    340,939.88/512,530.95 = 316,277.66/x
  3. Step 3: Cross multiply
    340,939.88x = 512,530.95 × 316,277.66
  4. Step 4: Simplify right side
    340,939.88x = 162,102,086,980.92
  5. Step 5: Solve for x
    x = 162,102,086,980.92/340,939.88
  6. Step 6: Final answer
    x = 475,456.52

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1.5x scale

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.