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Finding the Fourth Proportional to 228,987.60, 315,991.71 and 127,004.03

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Solution

The fourth proportional to 228,987.60, 315,991.71 and 127,004.03 is: 175,259.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,987.60 : 315,991.71 = 127,004.03 : x
  2. Step 2: Convert to fraction form
    228,987.60/315,991.71 = 127,004.03/x
  3. Step 3: Cross multiply
    228,987.60x = 315,991.71 × 127,004.03
  4. Step 4: Simplify right side
    228,987.60x = 40,132,219,036.63
  5. Step 5: Solve for x
    x = 40,132,219,036.63/228,987.60
  6. Step 6: Final answer
    x = 175,259.35

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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.