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Finding the Fourth Proportional to 287,775.93, 397,124.13 and 166,928.37

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Solution

The fourth proportional to 287,775.93, 397,124.13 and 166,928.37 is: 230,357.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,775.93 : 397,124.13 = 166,928.37 : x
  2. Step 2: Convert to fraction form
    287,775.93/397,124.13 = 166,928.37/x
  3. Step 3: Cross multiply
    287,775.93x = 397,124.13 × 166,928.37
  4. Step 4: Simplify right side
    287,775.93x = 66,291,283,708.57
  5. Step 5: Solve for x
    x = 66,291,283,708.57/287,775.93
  6. Step 6: Final answer
    x = 230,357.29

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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.