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Finding the Fourth Proportional to 315,283.60, 435,091.37 and 224,797.21

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Solution

The fourth proportional to 315,283.60, 435,091.37 and 224,797.21 is: 310,220.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,283.60 : 435,091.37 = 224,797.21 : x
  2. Step 2: Convert to fraction form
    315,283.60/435,091.37 = 224,797.21/x
  3. Step 3: Cross multiply
    315,283.60x = 435,091.37 × 224,797.21
  4. Step 4: Simplify right side
    315,283.60x = 97,807,324,895.68
  5. Step 5: Solve for x
    x = 97,807,324,895.68/315,283.60
  6. Step 6: Final answer
    x = 310,220.15

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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.