Home / 386,132.37-579,224.47-105,652.05

Finding the Fourth Proportional to 386,132.37, 579,224.47 and 105,652.05

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Solution

The fourth proportional to 386,132.37, 579,224.47 and 105,652.05 is: 158,485.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,132.37 : 579,224.47 = 105,652.05 : x
  2. Step 2: Convert to fraction form
    386,132.37/579,224.47 = 105,652.05/x
  3. Step 3: Cross multiply
    386,132.37x = 579,224.47 × 105,652.05
  4. Step 4: Simplify right side
    386,132.37x = 61,196,249,505.41
  5. Step 5: Solve for x
    x = 61,196,249,505.41/386,132.37
  6. Step 6: Final answer
    x = 158,485.16

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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.