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Finding the Fourth Proportional to 243,308.48, 335,762.28 and 141,391.52

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Solution

The fourth proportional to 243,308.48, 335,762.28 and 141,391.52 is: 195,118.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,308.48 : 335,762.28 = 141,391.52 : x
  2. Step 2: Convert to fraction form
    243,308.48/335,762.28 = 141,391.52/x
  3. Step 3: Cross multiply
    243,308.48x = 335,762.28 × 141,391.52
  4. Step 4: Simplify right side
    243,308.48x = 47,473,939,127.87
  5. Step 5: Solve for x
    x = 47,473,939,127.87/243,308.48
  6. Step 6: Final answer
    x = 195,118.31

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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.