Home / 228,007.49-314,607.03-143,086.28

Finding the Fourth Proportional to 228,007.49, 314,607.03 and 143,086.28

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Solution

The fourth proportional to 228,007.49, 314,607.03 and 143,086.28 is: 197,431.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,007.49 : 314,607.03 = 143,086.28 : x
  2. Step 2: Convert to fraction form
    228,007.49/314,607.03 = 143,086.28/x
  3. Step 3: Cross multiply
    228,007.49x = 314,607.03 × 143,086.28
  4. Step 4: Simplify right side
    228,007.49x = 45,015,948,011.51
  5. Step 5: Solve for x
    x = 45,015,948,011.51/228,007.49
  6. Step 6: Final answer
    x = 197,431.89

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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.