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Finding the Fourth Proportional to 313,188.12, 432,200.80 and 169,948.16

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Solution

The fourth proportional to 313,188.12, 432,200.80 and 169,948.16 is: 234,529.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,188.12 : 432,200.80 = 169,948.16 : x
  2. Step 2: Convert to fraction form
    313,188.12/432,200.80 = 169,948.16/x
  3. Step 3: Cross multiply
    313,188.12x = 432,200.80 × 169,948.16
  4. Step 4: Simplify right side
    313,188.12x = 73,451,730,710.53
  5. Step 5: Solve for x
    x = 73,451,730,710.53/313,188.12
  6. Step 6: Final answer
    x = 234,529.11

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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.