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Finding the Fourth Proportional to 170,672.36, 256,035.27 and 139,006.22

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Solution

The fourth proportional to 170,672.36, 256,035.27 and 139,006.22 is: 208,531.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,672.36 : 256,035.27 = 139,006.22 : x
  2. Step 2: Convert to fraction form
    170,672.36/256,035.27 = 139,006.22/x
  3. Step 3: Cross multiply
    170,672.36x = 256,035.27 × 139,006.22
  4. Step 4: Simplify right side
    170,672.36x = 35,590,495,069.38
  5. Step 5: Solve for x
    x = 35,590,495,069.38/170,672.36
  6. Step 6: Final answer
    x = 208,531.10

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1.5x scale

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.