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Finding the Fourth Proportional to 310,915.80, 466,373.70 and 215,945.34

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Solution

The fourth proportional to 310,915.80, 466,373.70 and 215,945.34 is: 323,918.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,915.80 : 466,373.70 = 215,945.34 : x
  2. Step 2: Convert to fraction form
    310,915.80/466,373.70 = 215,945.34/x
  3. Step 3: Cross multiply
    310,915.80x = 466,373.70 × 215,945.34
  4. Step 4: Simplify right side
    310,915.80x = 100,711,227,213.56
  5. Step 5: Solve for x
    x = 100,711,227,213.56/310,915.80
  6. Step 6: Final answer
    x = 323,918.01

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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.