Home / 239,823.81-330,957.56-130,928.31

Finding the Fourth Proportional to 239,823.81, 330,957.56 and 130,928.31

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Solution

The fourth proportional to 239,823.81, 330,957.56 and 130,928.31 is: 180,681.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,823.81 : 330,957.56 = 130,928.31 : x
  2. Step 2: Convert to fraction form
    239,823.81/330,957.56 = 130,928.31/x
  3. Step 3: Cross multiply
    239,823.81x = 330,957.56 × 130,928.31
  4. Step 4: Simplify right side
    239,823.81x = 43,331,714,012.52
  5. Step 5: Solve for x
    x = 43,331,714,012.52/239,823.81
  6. Step 6: Final answer
    x = 180,681.45

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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.