Home / 228,009.49-314,609.79-143,088.28

Finding the Fourth Proportional to 228,009.49, 314,609.79 and 143,088.28

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Solution

The fourth proportional to 228,009.49, 314,609.79 and 143,088.28 is: 197,434.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,009.49 : 314,609.79 = 143,088.28 : x
  2. Step 2: Convert to fraction form
    228,009.49/314,609.79 = 143,088.28/x
  3. Step 3: Cross multiply
    228,009.49x = 314,609.79 × 143,088.28
  4. Step 4: Simplify right side
    228,009.49x = 45,016,973,722.26
  5. Step 5: Solve for x
    x = 45,016,973,722.26/228,009.49
  6. Step 6: Final answer
    x = 197,434.65

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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.