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Finding the Fourth Proportional to 228,990.60, 315,995.85 and 127,007.04

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Solution

The fourth proportional to 228,990.60, 315,995.85 and 127,007.04 is: 175,263.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,990.60 : 315,995.85 = 127,007.04 : x
  2. Step 2: Convert to fraction form
    228,990.60/315,995.85 = 127,007.04/x
  3. Step 3: Cross multiply
    228,990.60x = 315,995.85 × 127,007.04
  4. Step 4: Simplify right side
    228,990.60x = 40,133,697,560.78
  5. Step 5: Solve for x
    x = 40,133,697,560.78/228,990.60
  6. Step 6: Final answer
    x = 175,263.52

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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.