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Finding the Fourth Proportional to 146,494.40, 219,712.80 and 47,998.40

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Solution

The fourth proportional to 146,494.40, 219,712.80 and 47,998.40 is: 71,988.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,494.40 : 219,712.80 = 47,998.40 : x
  2. Step 2: Convert to fraction form
    146,494.40/219,712.80 = 47,998.40/x
  3. Step 3: Cross multiply
    146,494.40x = 219,712.80 × 47,998.40
  4. Step 4: Simplify right side
    146,494.40x = 10,545,862,859.52
  5. Step 5: Solve for x
    x = 10,545,862,859.52/146,494.40
  6. Step 6: Final answer
    x = 71,988.16

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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.