Home / 421,541.78-581,741.70-230,555.18

Finding the Fourth Proportional to 421,541.78, 581,741.70 and 230,555.18

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Solution

The fourth proportional to 421,541.78, 581,741.70 and 230,555.18 is: 318,173.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,541.78 : 581,741.70 = 230,555.18 : x
  2. Step 2: Convert to fraction form
    421,541.78/581,741.70 = 230,555.18/x
  3. Step 3: Cross multiply
    421,541.78x = 581,741.70 × 230,555.18
  4. Step 4: Simplify right side
    421,541.78x = 134,123,562,357.01
  5. Step 5: Solve for x
    x = 134,123,562,357.01/421,541.78
  6. Step 6: Final answer
    x = 318,173.83

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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.