Home / 304,445.53-420,341.57-189,770.05

Finding the Fourth Proportional to 304,445.53, 420,341.57 and 189,770.05

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Solution

The fourth proportional to 304,445.53, 420,341.57 and 189,770.05 is: 262,011.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,445.53 : 420,341.57 = 189,770.05 : x
  2. Step 2: Convert to fraction form
    304,445.53/420,341.57 = 189,770.05/x
  3. Step 3: Cross multiply
    304,445.53x = 420,341.57 × 189,770.05
  4. Step 4: Simplify right side
    304,445.53x = 79,768,240,755.98
  5. Step 5: Solve for x
    x = 79,768,240,755.98/304,445.53
  6. Step 6: Final answer
    x = 262,011.54

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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.