Home / 309,880.28-465,017.02-132,388.63

Finding the Fourth Proportional to 309,880.28, 465,017.02 and 132,388.63

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Solution

The fourth proportional to 309,880.28, 465,017.02 and 132,388.63 is: 198,666.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,880.28 : 465,017.02 = 132,388.63 : x
  2. Step 2: Convert to fraction form
    309,880.28/465,017.02 = 132,388.63/x
  3. Step 3: Cross multiply
    309,880.28x = 465,017.02 × 132,388.63
  4. Step 4: Simplify right side
    309,880.28x = 61,562,964,710.97
  5. Step 5: Solve for x
    x = 61,562,964,710.97/309,880.28
  6. Step 6: Final answer
    x = 198,666.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.