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Finding the Fourth Proportional to 239,817.66, 330,902.36 and 144,330.51

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Solution

The fourth proportional to 239,817.66, 330,902.36 and 144,330.51 is: 199,148.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,817.66 : 330,902.36 = 144,330.51 : x
  2. Step 2: Convert to fraction form
    239,817.66/330,902.36 = 144,330.51/x
  3. Step 3: Cross multiply
    239,817.66x = 330,902.36 × 144,330.51
  4. Step 4: Simplify right side
    239,817.66x = 47,759,306,390.01
  5. Step 5: Solve for x
    x = 47,759,306,390.01/239,817.66
  6. Step 6: Final answer
    x = 199,148.41

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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.