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Finding the Fourth Proportional to 421,573.72, 581,767.50 and 230,590.84

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Solution

The fourth proportional to 421,573.72, 581,767.50 and 230,590.84 is: 318,213.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,573.72 : 581,767.50 = 230,590.84 : x
  2. Step 2: Convert to fraction form
    421,573.72/581,767.50 = 230,590.84/x
  3. Step 3: Cross multiply
    421,573.72x = 581,767.50 × 230,590.84
  4. Step 4: Simplify right side
    421,573.72x = 134,150,256,509.70
  5. Step 5: Solve for x
    x = 134,150,256,509.70/421,573.72
  6. Step 6: Final answer
    x = 318,213.04

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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.