Home / 421,424.21-581,453.30-240,132.24

Finding the Fourth Proportional to 421,424.21, 581,453.30 and 240,132.24

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Solution

The fourth proportional to 421,424.21, 581,453.30 and 240,132.24 is: 331,318.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,424.21 : 581,453.30 = 240,132.24 : x
  2. Step 2: Convert to fraction form
    421,424.21/581,453.30 = 240,132.24/x
  3. Step 3: Cross multiply
    421,424.21x = 581,453.30 × 240,132.24
  4. Step 4: Simplify right side
    421,424.21x = 139,625,683,984.72
  5. Step 5: Solve for x
    x = 139,625,683,984.72/421,424.21
  6. Step 6: Final answer
    x = 331,318.61

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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.