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Finding the Fourth Proportional to 312,600.94, 431,386.63 and 169,360.67

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Solution

The fourth proportional to 312,600.94, 431,386.63 and 169,360.67 is: 233,716.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,600.94 : 431,386.63 = 169,360.67 : x
  2. Step 2: Convert to fraction form
    312,600.94/431,386.63 = 169,360.67/x
  3. Step 3: Cross multiply
    312,600.94x = 431,386.63 × 169,360.67
  4. Step 4: Simplify right side
    312,600.94x = 73,059,929,340.91
  5. Step 5: Solve for x
    x = 73,059,929,340.91/312,600.94
  6. Step 6: Final answer
    x = 233,716.28

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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.