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Finding the Fourth Proportional to 349,485.79, 481,709.08 and 247,380.23

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Solution

The fourth proportional to 349,485.79, 481,709.08 and 247,380.23 is: 340,973.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,485.79 : 481,709.08 = 247,380.23 : x
  2. Step 2: Convert to fraction form
    349,485.79/481,709.08 = 247,380.23/x
  3. Step 3: Cross multiply
    349,485.79x = 481,709.08 × 247,380.23
  4. Step 4: Simplify right side
    349,485.79x = 119,165,300,415.86
  5. Step 5: Solve for x
    x = 119,165,300,415.86/349,485.79
  6. Step 6: Final answer
    x = 340,973.24

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Double scale
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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.