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Finding the Fourth Proportional to 239,476.77, 330,500.12 and 137,515.59

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Solution

The fourth proportional to 239,476.77, 330,500.12 and 137,515.59 is: 189,784.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,476.77 : 330,500.12 = 137,515.59 : x
  2. Step 2: Convert to fraction form
    239,476.77/330,500.12 = 137,515.59/x
  3. Step 3: Cross multiply
    239,476.77x = 330,500.12 × 137,515.59
  4. Step 4: Simplify right side
    239,476.77x = 45,448,918,309.29
  5. Step 5: Solve for x
    x = 45,448,918,309.29/239,476.77
  6. Step 6: Final answer
    x = 189,784.25

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1.5x scale

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.