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Finding the Fourth Proportional to 394,931.64, 545,008.32 and 241,970.12

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Solution

The fourth proportional to 394,931.64, 545,008.32 and 241,970.12 is: 333,920.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,931.64 : 545,008.32 = 241,970.12 : x
  2. Step 2: Convert to fraction form
    394,931.64/545,008.32 = 241,970.12/x
  3. Step 3: Cross multiply
    394,931.64x = 545,008.32 × 241,970.12
  4. Step 4: Simplify right side
    394,931.64x = 131,875,728,591.40
  5. Step 5: Solve for x
    x = 131,875,728,591.40/394,931.64
  6. Step 6: Final answer
    x = 333,920.39

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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.