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Finding the Fourth Proportional to 317,895.64, 438,722.94 and 174,684.40

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Solution

The fourth proportional to 317,895.64, 438,722.94 and 174,684.40 is: 241,079.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,895.64 : 438,722.94 = 174,684.40 : x
  2. Step 2: Convert to fraction form
    317,895.64/438,722.94 = 174,684.40/x
  3. Step 3: Cross multiply
    317,895.64x = 438,722.94 × 174,684.40
  4. Step 4: Simplify right side
    317,895.64x = 76,638,053,540.14
  5. Step 5: Solve for x
    x = 76,638,053,540.14/317,895.64
  6. Step 6: Final answer
    x = 241,079.28

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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.