Home / 421,688.24-581,969.82-230,730.32

Finding the Fourth Proportional to 421,688.24, 581,969.82 and 230,730.32

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Solution

The fourth proportional to 421,688.24, 581,969.82 and 230,730.32 is: 318,429.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,688.24 : 581,969.82 = 230,730.32 : x
  2. Step 2: Convert to fraction form
    421,688.24/581,969.82 = 230,730.32/x
  3. Step 3: Cross multiply
    421,688.24x = 581,969.82 × 230,730.32
  4. Step 4: Simplify right side
    421,688.24x = 134,278,082,798.94
  5. Step 5: Solve for x
    x = 134,278,082,798.94/421,688.24
  6. Step 6: Final answer
    x = 318,429.75

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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.