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Finding the Fourth Proportional to 229,401, 316,577.04 and 128,796.84

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Solution

The fourth proportional to 229,401, 316,577.04 and 128,796.84 is: 177,741.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,401 : 316,577.04 = 128,796.84 : x
  2. Step 2: Convert to fraction form
    229,401/316,577.04 = 128,796.84/x
  3. Step 3: Cross multiply
    229,401x = 316,577.04 × 128,796.84
  4. Step 4: Simplify right side
    229,401x = 40,774,122,368.55
  5. Step 5: Solve for x
    x = 40,774,122,368.55/229,401
  6. Step 6: Final answer
    x = 177,741.69

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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.