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Finding the Fourth Proportional to 315,374.58, 435,273.35 and 188,058.38

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Solution

The fourth proportional to 315,374.58, 435,273.35 and 188,058.38 is: 259,554.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,374.58 : 435,273.35 = 188,058.38 : x
  2. Step 2: Convert to fraction form
    315,374.58/435,273.35 = 188,058.38/x
  3. Step 3: Cross multiply
    315,374.58x = 435,273.35 × 188,058.38
  4. Step 4: Simplify right side
    315,374.58x = 81,856,797,941.51
  5. Step 5: Solve for x
    x = 81,856,797,941.51/315,374.58
  6. Step 6: Final answer
    x = 259,554.20

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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.