Home / 421,343.98-581,454.75-230,357.42

Finding the Fourth Proportional to 421,343.98, 581,454.75 and 230,357.42

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Solution

The fourth proportional to 421,343.98, 581,454.75 and 230,357.42 is: 317,893.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,343.98 : 581,454.75 = 230,357.42 : x
  2. Step 2: Convert to fraction form
    421,343.98/581,454.75 = 230,357.42/x
  3. Step 3: Cross multiply
    421,343.98x = 581,454.75 × 230,357.42
  4. Step 4: Simplify right side
    421,343.98x = 133,942,416,193.77
  5. Step 5: Solve for x
    x = 133,942,416,193.77/421,343.98
  6. Step 6: Final answer
    x = 317,893.27

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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.