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Finding the Fourth Proportional to 250,212.64, 375,276.66 and 70,256.80

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Solution

The fourth proportional to 250,212.64, 375,276.66 and 70,256.80 is: 105,373.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,212.64 : 375,276.66 = 70,256.80 : x
  2. Step 2: Convert to fraction form
    250,212.64/375,276.66 = 70,256.80/x
  3. Step 3: Cross multiply
    250,212.64x = 375,276.66 × 70,256.80
  4. Step 4: Simplify right side
    250,212.64x = 26,365,737,246.29
  5. Step 5: Solve for x
    x = 26,365,737,246.29/250,212.64
  6. Step 6: Final answer
    x = 105,373.32

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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.