Home / 239,720.34-330,822.02-130,830.64

Finding the Fourth Proportional to 239,720.34, 330,822.02 and 130,830.64

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Solution

The fourth proportional to 239,720.34, 330,822.02 and 130,830.64 is: 180,550.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,720.34 : 330,822.02 = 130,830.64 : x
  2. Step 2: Convert to fraction form
    239,720.34/330,822.02 = 130,830.64/x
  3. Step 3: Cross multiply
    239,720.34x = 330,822.02 × 130,830.64
  4. Step 4: Simplify right side
    239,720.34x = 43,281,656,602.69
  5. Step 5: Solve for x
    x = 43,281,656,602.69/239,720.34
  6. Step 6: Final answer
    x = 180,550.62

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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.