Home / 315,175.25-434,941.28-171,935.29

Finding the Fourth Proportional to 315,175.25, 434,941.28 and 171,935.29

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Solution

The fourth proportional to 315,175.25, 434,941.28 and 171,935.29 is: 237,270.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,175.25 : 434,941.28 = 171,935.29 : x
  2. Step 2: Convert to fraction form
    315,175.25/434,941.28 = 171,935.29/x
  3. Step 3: Cross multiply
    315,175.25x = 434,941.28 × 171,935.29
  4. Step 4: Simplify right side
    315,175.25x = 74,781,755,438.53
  5. Step 5: Solve for x
    x = 74,781,755,438.53/315,175.25
  6. Step 6: Final answer
    x = 237,270.39

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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.