Home / 272,208.47-408,046.61-122,486.45

Finding the Fourth Proportional to 272,208.47, 408,046.61 and 122,486.45

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Solution

The fourth proportional to 272,208.47, 408,046.61 and 122,486.45 is: 183,609.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,208.47 : 408,046.61 = 122,486.45 : x
  2. Step 2: Convert to fraction form
    272,208.47/408,046.61 = 122,486.45/x
  3. Step 3: Cross multiply
    272,208.47x = 408,046.61 × 122,486.45
  4. Step 4: Simplify right side
    272,208.47x = 49,980,178,959.42
  5. Step 5: Solve for x
    x = 49,980,178,959.42/272,208.47
  6. Step 6: Final answer
    x = 183,609.94

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1.5x scale

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.