Home / 305,344.21-458,279.83-211,915.57

Finding the Fourth Proportional to 305,344.21, 458,279.83 and 211,915.57

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Solution

The fourth proportional to 305,344.21, 458,279.83 and 211,915.57 is: 318,056.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,344.21 : 458,279.83 = 211,915.57 : x
  2. Step 2: Convert to fraction form
    305,344.21/458,279.83 = 211,915.57/x
  3. Step 3: Cross multiply
    305,344.21x = 458,279.83 × 211,915.57
  4. Step 4: Simplify right side
    305,344.21x = 97,116,628,572.77
  5. Step 5: Solve for x
    x = 97,116,628,572.77/305,344.21
  6. Step 6: Final answer
    x = 318,056.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.