Home / 287,945.01-397,372.77-160,617.87

Finding the Fourth Proportional to 287,945.01, 397,372.77 and 160,617.87

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Solution

The fourth proportional to 287,945.01, 397,372.77 and 160,617.87 is: 221,657.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,945.01 : 397,372.77 = 160,617.87 : x
  2. Step 2: Convert to fraction form
    287,945.01/397,372.77 = 160,617.87/x
  3. Step 3: Cross multiply
    287,945.01x = 397,372.77 × 160,617.87
  4. Step 4: Simplify right side
    287,945.01x = 63,825,167,913.40
  5. Step 5: Solve for x
    x = 63,825,167,913.40/287,945.01
  6. Step 6: Final answer
    x = 221,657.49

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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.