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Finding the Fourth Proportional to 253,645.62, 349,980.91 and 144,747.60

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Solution

The fourth proportional to 253,645.62, 349,980.91 and 144,747.60 is: 199,723.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,645.62 : 349,980.91 = 144,747.60 : x
  2. Step 2: Convert to fraction form
    253,645.62/349,980.91 = 144,747.60/x
  3. Step 3: Cross multiply
    253,645.62x = 349,980.91 × 144,747.60
  4. Step 4: Simplify right side
    253,645.62x = 50,658,896,768.32
  5. Step 5: Solve for x
    x = 50,658,896,768.32/253,645.62
  6. Step 6: Final answer
    x = 199,723.13

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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.