Home / 215,770.79-297,624.74-143,172.11

Finding the Fourth Proportional to 215,770.79, 297,624.74 and 143,172.11

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Solution

The fourth proportional to 215,770.79, 297,624.74 and 143,172.11 is: 197,485.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,770.79 : 297,624.74 = 143,172.11 : x
  2. Step 2: Convert to fraction form
    215,770.79/297,624.74 = 143,172.11/x
  3. Step 3: Cross multiply
    215,770.79x = 297,624.74 × 143,172.11
  4. Step 4: Simplify right side
    215,770.79x = 42,611,562,042.20
  5. Step 5: Solve for x
    x = 42,611,562,042.20/215,770.79
  6. Step 6: Final answer
    x = 197,485.31

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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.