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Finding the Fourth Proportional to 152,896.62, 228,995.75 and 72,990.80

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Solution

The fourth proportional to 152,896.62, 228,995.75 and 72,990.80 is: 109,319.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,896.62 : 228,995.75 = 72,990.80 : x
  2. Step 2: Convert to fraction form
    152,896.62/228,995.75 = 72,990.80/x
  3. Step 3: Cross multiply
    152,896.62x = 228,995.75 × 72,990.80
  4. Step 4: Simplify right side
    152,896.62x = 16,714,582,026.60
  5. Step 5: Solve for x
    x = 16,714,582,026.60/152,896.62
  6. Step 6: Final answer
    x = 109,319.50

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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.