Home / 386,132.49-579,224.66-105,652.17

Finding the Fourth Proportional to 386,132.49, 579,224.66 and 105,652.17

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Solution

The fourth proportional to 386,132.49, 579,224.66 and 105,652.17 is: 158,485.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,132.49 : 579,224.66 = 105,652.17 : x
  2. Step 2: Convert to fraction form
    386,132.49/579,224.66 = 105,652.17/x
  3. Step 3: Cross multiply
    386,132.49x = 579,224.66 × 105,652.17
  4. Step 4: Simplify right side
    386,132.49x = 61,196,341,718.25
  5. Step 5: Solve for x
    x = 61,196,341,718.25/386,132.49
  6. Step 6: Final answer
    x = 158,485.35

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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.