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Finding the Fourth Proportional to 228,591.81, 315,461.82 and 130,473.10

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Solution

The fourth proportional to 228,591.81, 315,461.82 and 130,473.10 is: 180,055.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,591.81 : 315,461.82 = 130,473.10 : x
  2. Step 2: Convert to fraction form
    228,591.81/315,461.82 = 130,473.10/x
  3. Step 3: Cross multiply
    228,591.81x = 315,461.82 × 130,473.10
  4. Step 4: Simplify right side
    228,591.81x = 41,159,279,357.37
  5. Step 5: Solve for x
    x = 41,159,279,357.37/228,591.81
  6. Step 6: Final answer
    x = 180,055.79

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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.