Home / 287,676.04-397,006.38-160,352.56

Finding the Fourth Proportional to 287,676.04, 397,006.38 and 160,352.56

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Solution

The fourth proportional to 287,676.04, 397,006.38 and 160,352.56 is: 221,294.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,676.04 : 397,006.38 = 160,352.56 : x
  2. Step 2: Convert to fraction form
    287,676.04/397,006.38 = 160,352.56/x
  3. Step 3: Cross multiply
    287,676.04x = 397,006.38 × 160,352.56
  4. Step 4: Simplify right side
    287,676.04x = 63,660,989,369.33
  5. Step 5: Solve for x
    x = 63,660,989,369.33/287,676.04
  6. Step 6: Final answer
    x = 221,294.03

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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.