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Finding the Fourth Proportional to 247,405.76, 341,420.64 and 134,228.24

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Solution

The fourth proportional to 247,405.76, 341,420.64 and 134,228.24 is: 185,235.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,405.76 : 341,420.64 = 134,228.24 : x
  2. Step 2: Convert to fraction form
    247,405.76/341,420.64 = 134,228.24/x
  3. Step 3: Cross multiply
    247,405.76x = 341,420.64 × 134,228.24
  4. Step 4: Simplify right side
    247,405.76x = 45,828,291,606.87
  5. Step 5: Solve for x
    x = 45,828,291,606.87/247,405.76
  6. Step 6: Final answer
    x = 185,235.35

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1.5x scale

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.