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Finding the Fourth Proportional to 146,246.40, 219,110.40 and 136,915.20

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Solution

The fourth proportional to 146,246.40, 219,110.40 and 136,915.20 is: 205,130.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,246.40 : 219,110.40 = 136,915.20 : x
  2. Step 2: Convert to fraction form
    146,246.40/219,110.40 = 136,915.20/x
  3. Step 3: Cross multiply
    146,246.40x = 219,110.40 × 136,915.20
  4. Step 4: Simplify right side
    146,246.40x = 29,999,544,238.08
  5. Step 5: Solve for x
    x = 29,999,544,238.08/146,246.40
  6. Step 6: Final answer
    x = 205,130.14

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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.