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Finding the Fourth Proportional to 421,567.34, 581,767.52 and 230,576.63

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Solution

The fourth proportional to 421,567.34, 581,767.52 and 230,576.63 is: 318,198.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,567.34 : 581,767.52 = 230,576.63 : x
  2. Step 2: Convert to fraction form
    421,567.34/581,767.52 = 230,576.63/x
  3. Step 3: Cross multiply
    421,567.34x = 581,767.52 × 230,576.63
  4. Step 4: Simplify right side
    421,567.34x = 134,141,990,143.34
  5. Step 5: Solve for x
    x = 134,141,990,143.34/421,567.34
  6. Step 6: Final answer
    x = 318,198.25

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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.