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Finding the Fourth Proportional to 315,791.58, 435,792.48 and 170,597.40

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Solution

The fourth proportional to 315,791.58, 435,792.48 and 170,597.40 is: 235,424.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,791.58 : 435,792.48 = 170,597.40 : x
  2. Step 2: Convert to fraction form
    315,791.58/435,792.48 = 170,597.40/x
  3. Step 3: Cross multiply
    315,791.58x = 435,792.48 × 170,597.40
  4. Step 4: Simplify right side
    315,791.58x = 74,345,064,027.55
  5. Step 5: Solve for x
    x = 74,345,064,027.55/315,791.58
  6. Step 6: Final answer
    x = 235,424.47

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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.