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Finding the Fourth Proportional to 313,278.74, 432,313.06 and 170,035.71

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Solution

The fourth proportional to 313,278.74, 432,313.06 and 170,035.71 is: 234,642.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,278.74 : 432,313.06 = 170,035.71 : x
  2. Step 2: Convert to fraction form
    313,278.74/432,313.06 = 170,035.71/x
  3. Step 3: Cross multiply
    313,278.74x = 432,313.06 × 170,035.71
  4. Step 4: Simplify right side
    313,278.74x = 73,508,658,099.37
  5. Step 5: Solve for x
    x = 73,508,658,099.37/313,278.74
  6. Step 6: Final answer
    x = 234,642.98

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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.