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Finding the Fourth Proportional to 394,838.64, 544,875.66 and 213,550.74

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Solution

The fourth proportional to 394,838.64, 544,875.66 and 213,550.74 is: 294,699.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,838.64 : 544,875.66 = 213,550.74 : x
  2. Step 2: Convert to fraction form
    394,838.64/544,875.66 = 213,550.74/x
  3. Step 3: Cross multiply
    394,838.64x = 544,875.66 × 213,550.74
  4. Step 4: Simplify right side
    394,838.64x = 116,358,600,400.99
  5. Step 5: Solve for x
    x = 116,358,600,400.99/394,838.64
  6. Step 6: Final answer
    x = 294,699.12

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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.