Home / 224,121.81-309,284.28-122,148.48

Finding the Fourth Proportional to 224,121.81, 309,284.28 and 122,148.48

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Solution

The fourth proportional to 224,121.81, 309,284.28 and 122,148.48 is: 168,562.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,121.81 : 309,284.28 = 122,148.48 : x
  2. Step 2: Convert to fraction form
    224,121.81/309,284.28 = 122,148.48/x
  3. Step 3: Cross multiply
    224,121.81x = 309,284.28 × 122,148.48
  4. Step 4: Simplify right side
    224,121.81x = 37,778,604,689.89
  5. Step 5: Solve for x
    x = 37,778,604,689.89/224,121.81
  6. Step 6: Final answer
    x = 168,562.82

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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.