Home / 386,473.17-579,749.52-133,753.22

Finding the Fourth Proportional to 386,473.17, 579,749.52 and 133,753.22

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Solution

The fourth proportional to 386,473.17, 579,749.52 and 133,753.22 is: 200,643.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,473.17 : 579,749.52 = 133,753.22 : x
  2. Step 2: Convert to fraction form
    386,473.17/579,749.52 = 133,753.22/x
  3. Step 3: Cross multiply
    386,473.17x = 579,749.52 × 133,753.22
  4. Step 4: Simplify right side
    386,473.17x = 77,543,362,194.71
  5. Step 5: Solve for x
    x = 77,543,362,194.71/386,473.17
  6. Step 6: Final answer
    x = 200,643.58

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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.