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Finding the Fourth Proportional to 421,462.34, 581,622.62 and 230,471.62

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Solution

The fourth proportional to 421,462.34, 581,622.62 and 230,471.62 is: 318,053.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,462.34 : 581,622.62 = 230,471.62 : x
  2. Step 2: Convert to fraction form
    421,462.34/581,622.62 = 230,471.62/x
  3. Step 3: Cross multiply
    421,462.34x = 581,622.62 × 230,471.62
  4. Step 4: Simplify right side
    421,462.34x = 134,047,507,460.04
  5. Step 5: Solve for x
    x = 134,047,507,460.04/421,462.34
  6. Step 6: Final answer
    x = 318,053.35

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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.