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Finding the Fourth Proportional to 170,302, 255,679.08 and 145,501.36

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Solution

The fourth proportional to 170,302, 255,679.08 and 145,501.36 is: 218,445.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,302 : 255,679.08 = 145,501.36 : x
  2. Step 2: Convert to fraction form
    170,302/255,679.08 = 145,501.36/x
  3. Step 3: Cross multiply
    170,302x = 255,679.08 × 145,501.36
  4. Step 4: Simplify right side
    170,302x = 37,201,653,863.55
  5. Step 5: Solve for x
    x = 37,201,653,863.55/170,302
  6. Step 6: Final answer
    x = 218,445.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.