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Finding the Fourth Proportional to 217,041.40, 325,124.70 and 123,437.80

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Solution

The fourth proportional to 217,041.40, 325,124.70 and 123,437.80 is: 184,907.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,041.40 : 325,124.70 = 123,437.80 : x
  2. Step 2: Convert to fraction form
    217,041.40/325,124.70 = 123,437.80/x
  3. Step 3: Cross multiply
    217,041.40x = 325,124.70 × 123,437.80
  4. Step 4: Simplify right side
    217,041.40x = 40,132,677,693.66
  5. Step 5: Solve for x
    x = 40,132,677,693.66/217,041.40
  6. Step 6: Final answer
    x = 184,907.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.