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Finding the Fourth Proportional to 239,619.77, 330,783.90 and 152,440.71

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Solution

The fourth proportional to 239,619.77, 330,783.90 and 152,440.71 is: 210,437.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,619.77 : 330,783.90 = 152,440.71 : x
  2. Step 2: Convert to fraction form
    239,619.77/330,783.90 = 152,440.71/x
  3. Step 3: Cross multiply
    239,619.77x = 330,783.90 × 152,440.71
  4. Step 4: Simplify right side
    239,619.77x = 50,424,932,572.57
  5. Step 5: Solve for x
    x = 50,424,932,572.57/239,619.77
  6. Step 6: Final answer
    x = 210,437.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.