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Finding the Fourth Proportional to 242,897.81, 335,197.94 and 133,999.20

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Solution

The fourth proportional to 242,897.81, 335,197.94 and 133,999.20 is: 184,918.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,897.81 : 335,197.94 = 133,999.20 : x
  2. Step 2: Convert to fraction form
    242,897.81/335,197.94 = 133,999.20/x
  3. Step 3: Cross multiply
    242,897.81x = 335,197.94 × 133,999.20
  4. Step 4: Simplify right side
    242,897.81x = 44,916,255,131.65
  5. Step 5: Solve for x
    x = 44,916,255,131.65/242,897.81
  6. Step 6: Final answer
    x = 184,918.32

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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.