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Finding the Fourth Proportional to 421,050.76, 581,050.20 and 227,458.56

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Solution

The fourth proportional to 421,050.76, 581,050.20 and 227,458.56 is: 313,892.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,050.76 : 581,050.20 = 227,458.56 : x
  2. Step 2: Convert to fraction form
    421,050.76/581,050.20 = 227,458.56/x
  3. Step 3: Cross multiply
    421,050.76x = 581,050.20 × 227,458.56
  4. Step 4: Simplify right side
    421,050.76x = 132,164,841,779.71
  5. Step 5: Solve for x
    x = 132,164,841,779.71/421,050.76
  6. Step 6: Final answer
    x = 313,892.89

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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.