Home / 421,120.36-581,132.58-230,133.16

Finding the Fourth Proportional to 421,120.36, 581,132.58 and 230,133.16

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Solution

The fourth proportional to 421,120.36, 581,132.58 and 230,133.16 is: 317,576.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,120.36 : 581,132.58 = 230,133.16 : x
  2. Step 2: Convert to fraction form
    421,120.36/581,132.58 = 230,133.16/x
  3. Step 3: Cross multiply
    421,120.36x = 581,132.58 × 230,133.16
  4. Step 4: Simplify right side
    421,120.36x = 133,737,877,014.35
  5. Step 5: Solve for x
    x = 133,737,877,014.35/421,120.36
  6. Step 6: Final answer
    x = 317,576.37

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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.