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Finding the Fourth Proportional to 225,122.50, 310,678.77 and 124,520.50

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Solution

The fourth proportional to 225,122.50, 310,678.77 and 124,520.50 is: 171,843.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,122.50 : 310,678.77 = 124,520.50 : x
  2. Step 2: Convert to fraction form
    225,122.50/310,678.77 = 124,520.50/x
  3. Step 3: Cross multiply
    225,122.50x = 310,678.77 × 124,520.50
  4. Step 4: Simplify right side
    225,122.50x = 38,685,875,779.79
  5. Step 5: Solve for x
    x = 38,685,875,779.79/225,122.50
  6. Step 6: Final answer
    x = 171,843.67

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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.