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Finding the Fourth Proportional to 146,804.40, 202,289.40 and 121,402.80

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Solution

The fourth proportional to 146,804.40, 202,289.40 and 121,402.80 is: 167,287.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,804.40 : 202,289.40 = 121,402.80 : x
  2. Step 2: Convert to fraction form
    146,804.40/202,289.40 = 121,402.80/x
  3. Step 3: Cross multiply
    146,804.40x = 202,289.40 × 121,402.80
  4. Step 4: Simplify right side
    146,804.40x = 24,558,499,570.32
  5. Step 5: Solve for x
    x = 24,558,499,570.32/146,804.40
  6. Step 6: Final answer
    x = 167,287.22

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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.