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Finding the Fourth Proportional to 310,850.64, 428,973.12 and 174,884.67

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Solution

The fourth proportional to 310,850.64, 428,973.12 and 174,884.67 is: 241,340.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,850.64 : 428,973.12 = 174,884.67 : x
  2. Step 2: Convert to fraction form
    310,850.64/428,973.12 = 174,884.67/x
  3. Step 3: Cross multiply
    310,850.64x = 428,973.12 × 174,884.67
  4. Step 4: Simplify right side
    310,850.64x = 75,020,822,530.07
  5. Step 5: Solve for x
    x = 75,020,822,530.07/310,850.64
  6. Step 6: Final answer
    x = 241,340.42

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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.