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Finding the Fourth Proportional to 229,975.60, 317,365.80 and 129,373.60

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Solution

The fourth proportional to 229,975.60, 317,365.80 and 129,373.60 is: 178,535.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,975.60 : 317,365.80 = 129,373.60 : x
  2. Step 2: Convert to fraction form
    229,975.60/317,365.80 = 129,373.60/x
  3. Step 3: Cross multiply
    229,975.60x = 317,365.80 × 129,373.60
  4. Step 4: Simplify right side
    229,975.60x = 41,058,756,062.88
  5. Step 5: Solve for x
    x = 41,058,756,062.88/229,975.60
  6. Step 6: Final answer
    x = 178,535.27

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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.