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Finding the Fourth Proportional to 286,907, 395,931.66 and 167,675

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Solution

The fourth proportional to 286,907, 395,931.66 and 167,675 is: 231,391.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,907 : 395,931.66 = 167,675 : x
  2. Step 2: Convert to fraction form
    286,907/395,931.66 = 167,675/x
  3. Step 3: Cross multiply
    286,907x = 395,931.66 × 167,675
  4. Step 4: Simplify right side
    286,907x = 66,387,841,090.50
  5. Step 5: Solve for x
    x = 66,387,841,090.50/286,907
  6. Step 6: Final answer
    x = 231,391.50

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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.