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Finding the Fourth Proportional to 397,338.98, 548,328.42 and 216,050.76

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Solution

The fourth proportional to 397,338.98, 548,328.42 and 216,050.76 is: 298,150.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,338.98 : 548,328.42 = 216,050.76 : x
  2. Step 2: Convert to fraction form
    397,338.98/548,328.42 = 216,050.76/x
  3. Step 3: Cross multiply
    397,338.98x = 548,328.42 × 216,050.76
  4. Step 4: Simplify right side
    397,338.98x = 118,466,771,870.60
  5. Step 5: Solve for x
    x = 118,466,771,870.60/397,338.98
  6. Step 6: Final answer
    x = 298,150.39

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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.