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Finding the Fourth Proportional to 253,609.47, 349,992.15 and 140,432.22

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Solution

The fourth proportional to 253,609.47, 349,992.15 and 140,432.22 is: 193,802.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,609.47 : 349,992.15 = 140,432.22 : x
  2. Step 2: Convert to fraction form
    253,609.47/349,992.15 = 140,432.22/x
  3. Step 3: Cross multiply
    253,609.47x = 349,992.15 × 140,432.22
  4. Step 4: Simplify right side
    253,609.47x = 49,150,174,607.07
  5. Step 5: Solve for x
    x = 49,150,174,607.07/253,609.47
  6. Step 6: Final answer
    x = 193,802.60

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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.