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Finding the Fourth Proportional to 228,114.88, 314,785.72 and 126,134.40

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Solution

The fourth proportional to 228,114.88, 314,785.72 and 126,134.40 is: 174,058.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,114.88 : 314,785.72 = 126,134.40 : x
  2. Step 2: Convert to fraction form
    228,114.88/314,785.72 = 126,134.40/x
  3. Step 3: Cross multiply
    228,114.88x = 314,785.72 × 126,134.40
  4. Step 4: Simplify right side
    228,114.88x = 39,705,307,920.77
  5. Step 5: Solve for x
    x = 39,705,307,920.77/228,114.88
  6. Step 6: Final answer
    x = 174,058.39

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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.