Home / 421,123.07-581,150.08-230,136.46

Finding the Fourth Proportional to 421,123.07, 581,150.08 and 230,136.46

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Solution

The fourth proportional to 421,123.07, 581,150.08 and 230,136.46 is: 317,588.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,123.07 : 581,150.08 = 230,136.46 : x
  2. Step 2: Convert to fraction form
    421,123.07/581,150.08 = 230,136.46/x
  3. Step 3: Cross multiply
    421,123.07x = 581,150.08 × 230,136.46
  4. Step 4: Simplify right side
    421,123.07x = 133,743,819,680.20
  5. Step 5: Solve for x
    x = 133,743,819,680.20/421,123.07
  6. Step 6: Final answer
    x = 317,588.44

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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.