Home / 386,985.69-580,147.68-146,965.23

Finding the Fourth Proportional to 386,985.69, 580,147.68 and 146,965.23

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Solution

The fourth proportional to 386,985.69, 580,147.68 and 146,965.23 is: 220,322.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,985.69 : 580,147.68 = 146,965.23 : x
  2. Step 2: Convert to fraction form
    386,985.69/580,147.68 = 146,965.23/x
  3. Step 3: Cross multiply
    386,985.69x = 580,147.68 × 146,965.23
  4. Step 4: Simplify right side
    386,985.69x = 85,261,537,225.17
  5. Step 5: Solve for x
    x = 85,261,537,225.17/386,985.69
  6. Step 6: Final answer
    x = 220,322.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.