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Finding the Fourth Proportional to 313,211.71, 432,232.43 and 169,971.74

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Solution

The fourth proportional to 313,211.71, 432,232.43 and 169,971.74 is: 234,561.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,211.71 : 432,232.43 = 169,971.74 : x
  2. Step 2: Convert to fraction form
    313,211.71/432,232.43 = 169,971.74/x
  3. Step 3: Cross multiply
    313,211.71x = 432,232.43 × 169,971.74
  4. Step 4: Simplify right side
    313,211.71x = 73,467,298,211.53
  5. Step 5: Solve for x
    x = 73,467,298,211.53/313,211.71
  6. Step 6: Final answer
    x = 234,561.15

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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.