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Finding the Fourth Proportional to 146,486.40, 219,729.60 and 101,385.60

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Solution

The fourth proportional to 146,486.40, 219,729.60 and 101,385.60 is: 152,078.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,486.40 : 219,729.60 = 101,385.60 : x
  2. Step 2: Convert to fraction form
    146,486.40/219,729.60 = 101,385.60/x
  3. Step 3: Cross multiply
    146,486.40x = 219,729.60 × 101,385.60
  4. Step 4: Simplify right side
    146,486.40x = 22,277,417,333.76
  5. Step 5: Solve for x
    x = 22,277,417,333.76/146,486.40
  6. Step 6: Final answer
    x = 152,078.40

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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.