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Finding the Fourth Proportional to 287,999.04, 397,437.44 and 160,674.48

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Solution

The fourth proportional to 287,999.04, 397,437.44 and 160,674.48 is: 221,730.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,999.04 : 397,437.44 = 160,674.48 : x
  2. Step 2: Convert to fraction form
    287,999.04/397,437.44 = 160,674.48/x
  3. Step 3: Cross multiply
    287,999.04x = 397,437.44 × 160,674.48
  4. Step 4: Simplify right side
    287,999.04x = 63,858,054,004.53
  5. Step 5: Solve for x
    x = 63,858,054,004.53/287,999.04
  6. Step 6: Final answer
    x = 221,730.09

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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.