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Finding the Fourth Proportional to 250,215.64, 345,298.28 and 135,495.63

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Solution

The fourth proportional to 250,215.64, 345,298.28 and 135,495.63 is: 186,984.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,215.64 : 345,298.28 = 135,495.63 : x
  2. Step 2: Convert to fraction form
    250,215.64/345,298.28 = 135,495.63/x
  3. Step 3: Cross multiply
    250,215.64x = 345,298.28 × 135,495.63
  4. Step 4: Simplify right side
    250,215.64x = 46,786,407,309.04
  5. Step 5: Solve for x
    x = 46,786,407,309.04/250,215.64
  6. Step 6: Final answer
    x = 186,984.35

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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.