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Finding the Fourth Proportional to 311,591.28, 467,802.04 and 210,728.18

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Solution

The fourth proportional to 311,591.28, 467,802.04 and 210,728.18 is: 316,373.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,591.28 : 467,802.04 = 210,728.18 : x
  2. Step 2: Convert to fraction form
    311,591.28/467,802.04 = 210,728.18/x
  3. Step 3: Cross multiply
    311,591.28x = 467,802.04 × 210,728.18
  4. Step 4: Simplify right side
    311,591.28x = 98,579,072,489.49
  5. Step 5: Solve for x
    x = 98,579,072,489.49/311,591.28
  6. Step 6: Final answer
    x = 316,373.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.