Home / 421,656.26-581,890.23-230,665.55

Finding the Fourth Proportional to 421,656.26, 581,890.23 and 230,665.55

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Solution

The fourth proportional to 421,656.26, 581,890.23 and 230,665.55 is: 318,320.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,656.26 : 581,890.23 = 230,665.55 : x
  2. Step 2: Convert to fraction form
    421,656.26/581,890.23 = 230,665.55/x
  3. Step 3: Cross multiply
    421,656.26x = 581,890.23 × 230,665.55
  4. Step 4: Simplify right side
    421,656.26x = 134,222,027,033.13
  5. Step 5: Solve for x
    x = 134,222,027,033.13/421,656.26
  6. Step 6: Final answer
    x = 318,320.97

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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.