Home / 312,552.32-431,321.78-169,312.93

Finding the Fourth Proportional to 312,552.32, 431,321.78 and 169,312.93

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Solution

The fourth proportional to 312,552.32, 431,321.78 and 169,312.93 is: 233,651.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,552.32 : 431,321.78 = 169,312.93 : x
  2. Step 2: Convert to fraction form
    312,552.32/431,321.78 = 169,312.93/x
  3. Step 3: Cross multiply
    312,552.32x = 431,321.78 × 169,312.93
  4. Step 4: Simplify right side
    312,552.32x = 73,028,353,689.59
  5. Step 5: Solve for x
    x = 73,028,353,689.59/312,552.32
  6. Step 6: Final answer
    x = 233,651.62

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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.