Home / 421,125.11-581,152.93-230,138.52

Finding the Fourth Proportional to 421,125.11, 581,152.93 and 230,138.52

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Solution

The fourth proportional to 421,125.11, 581,152.93 and 230,138.52 is: 317,591.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,125.11 : 581,152.93 = 230,138.52 : x
  2. Step 2: Convert to fraction form
    421,125.11/581,152.93 = 230,138.52/x
  3. Step 3: Cross multiply
    421,125.11x = 581,152.93 × 230,138.52
  4. Step 4: Simplify right side
    421,125.11x = 133,745,674,628.52
  5. Step 5: Solve for x
    x = 133,745,674,628.52/421,125.11
  6. Step 6: Final answer
    x = 317,591.31

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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.