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Finding the Fourth Proportional to 250,143.50, 375,254.14 and 83,970.38

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Solution

The fourth proportional to 250,143.50, 375,254.14 and 83,970.38 is: 125,968.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,143.50 : 375,254.14 = 83,970.38 : x
  2. Step 2: Convert to fraction form
    250,143.50/375,254.14 = 83,970.38/x
  3. Step 3: Cross multiply
    250,143.50x = 375,254.14 × 83,970.38
  4. Step 4: Simplify right side
    250,143.50x = 31,510,232,732.37
  5. Step 5: Solve for x
    x = 31,510,232,732.37/250,143.50
  6. Step 6: Final answer
    x = 125,968.62

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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.