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Finding the Fourth Proportional to 228,590.81, 315,460.44 and 130,472.10

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Solution

The fourth proportional to 228,590.81, 315,460.44 and 130,472.10 is: 180,054.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,590.81 : 315,460.44 = 130,472.10 : x
  2. Step 2: Convert to fraction form
    228,590.81/315,460.44 = 130,472.10/x
  3. Step 3: Cross multiply
    228,590.81x = 315,460.44 × 130,472.10
  4. Step 4: Simplify right side
    228,590.81x = 41,158,783,844.06
  5. Step 5: Solve for x
    x = 41,158,783,844.06/228,590.81
  6. Step 6: Final answer
    x = 180,054.41

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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.