Home / 421,529.10-581,714.75-230,538.39

Finding the Fourth Proportional to 421,529.10, 581,714.75 and 230,538.39

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Solution

The fourth proportional to 421,529.10, 581,714.75 and 230,538.39 is: 318,145.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,529.10 : 581,714.75 = 230,538.39 : x
  2. Step 2: Convert to fraction form
    421,529.10/581,714.75 = 230,538.39/x
  3. Step 3: Cross multiply
    421,529.10x = 581,714.75 × 230,538.39
  4. Step 4: Simplify right side
    421,529.10x = 134,107,581,904.25
  5. Step 5: Solve for x
    x = 134,107,581,904.25/421,529.10
  6. Step 6: Final answer
    x = 318,145.49

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.