Home / 287,942.61-397,369.25-160,615.47

Finding the Fourth Proportional to 287,942.61, 397,369.25 and 160,615.47

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Solution

The fourth proportional to 287,942.61, 397,369.25 and 160,615.47 is: 221,654.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,942.61 : 397,369.25 = 160,615.47 : x
  2. Step 2: Convert to fraction form
    287,942.61/397,369.25 = 160,615.47/x
  3. Step 3: Cross multiply
    287,942.61x = 397,369.25 × 160,615.47
  4. Step 4: Simplify right side
    287,942.61x = 63,823,648,852.30
  5. Step 5: Solve for x
    x = 63,823,648,852.30/287,942.61
  6. Step 6: Final answer
    x = 221,654.06

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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.