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Finding the Fourth Proportional to 317,907.94, 439,101.08 and 237,691.21

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Solution

The fourth proportional to 317,907.94, 439,101.08 and 237,691.21 is: 328,304.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,907.94 : 439,101.08 = 237,691.21 : x
  2. Step 2: Convert to fraction form
    317,907.94/439,101.08 = 237,691.21/x
  3. Step 3: Cross multiply
    317,907.94x = 439,101.08 × 237,691.21
  4. Step 4: Simplify right side
    317,907.94x = 104,370,467,017.51
  5. Step 5: Solve for x
    x = 104,370,467,017.51/317,907.94
  6. Step 6: Final answer
    x = 328,304.06

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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.