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Finding the Fourth Proportional to 228,159.99, 314,858.90 and 126,189.72

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Solution

The fourth proportional to 228,159.99, 314,858.90 and 126,189.72 is: 174,140.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,159.99 : 314,858.90 = 126,189.72 : x
  2. Step 2: Convert to fraction form
    228,159.99/314,858.90 = 126,189.72/x
  3. Step 3: Cross multiply
    228,159.99x = 314,858.90 × 126,189.72
  4. Step 4: Simplify right side
    228,159.99x = 39,731,956,745.98
  5. Step 5: Solve for x
    x = 39,731,956,745.98/228,159.99
  6. Step 6: Final answer
    x = 174,140.77

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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.