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Finding the Fourth Proportional to 140,005.81, 210,009.47 and 34,824.78

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Solution

The fourth proportional to 140,005.81, 210,009.47 and 34,824.78 is: 52,237.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,005.81 : 210,009.47 = 34,824.78 : x
  2. Step 2: Convert to fraction form
    140,005.81/210,009.47 = 34,824.78/x
  3. Step 3: Cross multiply
    140,005.81x = 210,009.47 × 34,824.78
  4. Step 4: Simplify right side
    140,005.81x = 7,313,533,677.73
  5. Step 5: Solve for x
    x = 7,313,533,677.73/140,005.81
  6. Step 6: Final answer
    x = 52,237.36

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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.