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Finding the Fourth Proportional to 421,525.16, 581,696.58 and 230,537.96

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Solution

The fourth proportional to 421,525.16, 581,696.58 and 230,537.96 is: 318,137.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,525.16 : 581,696.58 = 230,537.96 : x
  2. Step 2: Convert to fraction form
    421,525.16/581,696.58 = 230,537.96/x
  3. Step 3: Cross multiply
    421,525.16x = 581,696.58 × 230,537.96
  4. Step 4: Simplify right side
    421,525.16x = 134,103,142,892.18
  5. Step 5: Solve for x
    x = 134,103,142,892.18/421,525.16
  6. Step 6: Final answer
    x = 318,137.93

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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.