Home / 224,742.40-310,145.56-122,769.28

Finding the Fourth Proportional to 224,742.40, 310,145.56 and 122,769.28

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Solution

The fourth proportional to 224,742.40, 310,145.56 and 122,769.28 is: 169,422.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,742.40 : 310,145.56 = 122,769.28 : x
  2. Step 2: Convert to fraction form
    224,742.40/310,145.56 = 122,769.28/x
  3. Step 3: Cross multiply
    224,742.40x = 310,145.56 × 122,769.28
  4. Step 4: Simplify right side
    224,742.40x = 38,076,347,096.40
  5. Step 5: Solve for x
    x = 38,076,347,096.40/224,742.40
  6. Step 6: Final answer
    x = 169,422.18

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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.