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Finding the Fourth Proportional to 247,820.40, 341,992.08 and 134,643.60

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Solution

The fourth proportional to 247,820.40, 341,992.08 and 134,643.60 is: 185,808.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,820.40 : 341,992.08 = 134,643.60 : x
  2. Step 2: Convert to fraction form
    247,820.40/341,992.08 = 134,643.60/x
  3. Step 3: Cross multiply
    247,820.40x = 341,992.08 × 134,643.60
  4. Step 4: Simplify right side
    247,820.40x = 46,047,044,822.69
  5. Step 5: Solve for x
    x = 46,047,044,822.69/247,820.40
  6. Step 6: Final answer
    x = 185,808.13

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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.