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Finding the Fourth Proportional to 317,658.63, 438,365.88 and 174,417.42

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Solution

The fourth proportional to 317,658.63, 438,365.88 and 174,417.42 is: 240,694.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,658.63 : 438,365.88 = 174,417.42 : x
  2. Step 2: Convert to fraction form
    317,658.63/438,365.88 = 174,417.42/x
  3. Step 3: Cross multiply
    317,658.63x = 438,365.88 × 174,417.42
  4. Step 4: Simplify right side
    317,658.63x = 76,458,645,805.63
  5. Step 5: Solve for x
    x = 76,458,645,805.63/317,658.63
  6. Step 6: Final answer
    x = 240,694.38

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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.