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Finding the Fourth Proportional to 228,630.64, 315,619.68 and 152,276.80

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Solution

The fourth proportional to 228,630.64, 315,619.68 and 152,276.80 is: 210,214.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,630.64 : 315,619.68 = 152,276.80 : x
  2. Step 2: Convert to fraction form
    228,630.64/315,619.68 = 152,276.80/x
  3. Step 3: Cross multiply
    228,630.64x = 315,619.68 × 152,276.80
  4. Step 4: Simplify right side
    228,630.64x = 48,061,554,887.42
  5. Step 5: Solve for x
    x = 48,061,554,887.42/228,630.64
  6. Step 6: Final answer
    x = 210,214.85

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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.