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Finding the Fourth Proportional to 347,800.80, 488,320.80 and 347,800.80

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Solution

The fourth proportional to 347,800.80, 488,320.80 and 347,800.80 is: 488,320.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,800.80 : 488,320.80 = 347,800.80 : x
  2. Step 2: Convert to fraction form
    347,800.80/488,320.80 = 347,800.80/x
  3. Step 3: Cross multiply
    347,800.80x = 488,320.80 × 347,800.80
  4. Step 4: Simplify right side
    347,800.80x = 169,838,364,896.64
  5. Step 5: Solve for x
    x = 169,838,364,896.64/347,800.80
  6. Step 6: Final answer
    x = 488,320.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.