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Finding the Fourth Proportional to 229,893.48, 317,179.08 and 139,220.40

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Solution

The fourth proportional to 229,893.48, 317,179.08 and 139,220.40 is: 192,079.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,893.48 : 317,179.08 = 139,220.40 : x
  2. Step 2: Convert to fraction form
    229,893.48/317,179.08 = 139,220.40/x
  3. Step 3: Cross multiply
    229,893.48x = 317,179.08 × 139,220.40
  4. Step 4: Simplify right side
    229,893.48x = 44,157,798,389.23
  5. Step 5: Solve for x
    x = 44,157,798,389.23/229,893.48
  6. Step 6: Final answer
    x = 192,079.39

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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.