Home / 228,496.36-315,280.14-143,564.36

Finding the Fourth Proportional to 228,496.36, 315,280.14 and 143,564.36

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Solution

The fourth proportional to 228,496.36, 315,280.14 and 143,564.36 is: 198,090.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,496.36 : 315,280.14 = 143,564.36 : x
  2. Step 2: Convert to fraction form
    228,496.36/315,280.14 = 143,564.36/x
  3. Step 3: Cross multiply
    228,496.36x = 315,280.14 × 143,564.36
  4. Step 4: Simplify right side
    228,496.36x = 45,262,991,519.81
  5. Step 5: Solve for x
    x = 45,262,991,519.81/228,496.36
  6. Step 6: Final answer
    x = 198,090.65

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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.