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Finding the Fourth Proportional to 253,688.12, 350,253.42 and 158,233.40

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Solution

The fourth proportional to 253,688.12, 350,253.42 and 158,233.40 is: 218,464.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,688.12 : 350,253.42 = 158,233.40 : x
  2. Step 2: Convert to fraction form
    253,688.12/350,253.42 = 158,233.40/x
  3. Step 3: Cross multiply
    253,688.12x = 350,253.42 × 158,233.40
  4. Step 4: Simplify right side
    253,688.12x = 55,421,789,508.23
  5. Step 5: Solve for x
    x = 55,421,789,508.23/253,688.12
  6. Step 6: Final answer
    x = 218,464.27

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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.