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Finding the Fourth Proportional to 397,330.55, 548,323.01 and 216,043.71

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Solution

The fourth proportional to 397,330.55, 548,323.01 and 216,043.71 is: 298,144.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,330.55 : 548,323.01 = 216,043.71 : x
  2. Step 2: Convert to fraction form
    397,330.55/548,323.01 = 216,043.71/x
  3. Step 3: Cross multiply
    397,330.55x = 548,323.01 × 216,043.71
  4. Step 4: Simplify right side
    397,330.55x = 118,461,737,358.77
  5. Step 5: Solve for x
    x = 118,461,737,358.77/397,330.55
  6. Step 6: Final answer
    x = 298,144.04

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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.