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Finding the Fourth Proportional to 214,885.80, 296,450.55 and 134,258.40

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Solution

The fourth proportional to 214,885.80, 296,450.55 and 134,258.40 is: 185,219.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,885.80 : 296,450.55 = 134,258.40 : x
  2. Step 2: Convert to fraction form
    214,885.80/296,450.55 = 134,258.40/x
  3. Step 3: Cross multiply
    214,885.80x = 296,450.55 × 134,258.40
  4. Step 4: Simplify right side
    214,885.80x = 39,800,976,522.12
  5. Step 5: Solve for x
    x = 39,800,976,522.12/214,885.80
  6. Step 6: Final answer
    x = 185,219.20

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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.