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Finding the Fourth Proportional to 251,965, 347,700.18 and 144,528.28

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Solution

The fourth proportional to 251,965, 347,700.18 and 144,528.28 is: 199,442.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,965 : 347,700.18 = 144,528.28 : x
  2. Step 2: Convert to fraction form
    251,965/347,700.18 = 144,528.28/x
  3. Step 3: Cross multiply
    251,965x = 347,700.18 × 144,528.28
  4. Step 4: Simplify right side
    251,965x = 50,252,508,971.09
  5. Step 5: Solve for x
    x = 50,252,508,971.09/251,965
  6. Step 6: Final answer
    x = 199,442.42

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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.