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Finding the Fourth Proportional to 207,714.20, 310,915.20 and 163,099.40

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Solution

The fourth proportional to 207,714.20, 310,915.20 and 163,099.40 is: 244,133.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,714.20 : 310,915.20 = 163,099.40 : x
  2. Step 2: Convert to fraction form
    207,714.20/310,915.20 = 163,099.40/x
  3. Step 3: Cross multiply
    207,714.20x = 310,915.20 × 163,099.40
  4. Step 4: Simplify right side
    207,714.20x = 50,710,082,570.88
  5. Step 5: Solve for x
    x = 50,710,082,570.88/207,714.20
  6. Step 6: Final answer
    x = 244,133.92

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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.