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Finding the Fourth Proportional to 315,033.64, 434,829.30 and 179,147.24

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Solution

The fourth proportional to 315,033.64, 434,829.30 and 179,147.24 is: 247,270.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,033.64 : 434,829.30 = 179,147.24 : x
  2. Step 2: Convert to fraction form
    315,033.64/434,829.30 = 179,147.24/x
  3. Step 3: Cross multiply
    315,033.64x = 434,829.30 × 179,147.24
  4. Step 4: Simplify right side
    315,033.64x = 77,898,468,966.13
  5. Step 5: Solve for x
    x = 77,898,468,966.13/315,033.64
  6. Step 6: Final answer
    x = 247,270.32

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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.