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Finding the Fourth Proportional to 230,364.81, 315,601.68 and 221,735.88

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Solution

The fourth proportional to 230,364.81, 315,601.68 and 221,735.88 is: 303,779.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,364.81 : 315,601.68 = 221,735.88 : x
  2. Step 2: Convert to fraction form
    230,364.81/315,601.68 = 221,735.88/x
  3. Step 3: Cross multiply
    230,364.81x = 315,601.68 × 221,735.88
  4. Step 4: Simplify right side
    230,364.81x = 69,980,217,075.79
  5. Step 5: Solve for x
    x = 69,980,217,075.79/230,364.81
  6. Step 6: Final answer
    x = 303,779.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.