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Finding the Fourth Proportional to 421,468.32, 581,626.26 and 230,481.84

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Solution

The fourth proportional to 421,468.32, 581,626.26 and 230,481.84 is: 318,064.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,468.32 : 581,626.26 = 230,481.84 : x
  2. Step 2: Convert to fraction form
    421,468.32/581,626.26 = 230,481.84/x
  3. Step 3: Cross multiply
    421,468.32x = 581,626.26 × 230,481.84
  4. Step 4: Simplify right side
    421,468.32x = 134,054,290,597.12
  5. Step 5: Solve for x
    x = 134,054,290,597.12/421,468.32
  6. Step 6: Final answer
    x = 318,064.93

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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.