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Finding the Fourth Proportional to 303,548.04, 455,242.72 and 90,258.51

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Solution

The fourth proportional to 303,548.04, 455,242.72 and 90,258.51 is: 135,364.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,548.04 : 455,242.72 = 90,258.51 : x
  2. Step 2: Convert to fraction form
    303,548.04/455,242.72 = 90,258.51/x
  3. Step 3: Cross multiply
    303,548.04x = 455,242.72 × 90,258.51
  4. Step 4: Simplify right side
    303,548.04x = 41,089,526,868.04
  5. Step 5: Solve for x
    x = 41,089,526,868.04/303,548.04
  6. Step 6: Final answer
    x = 135,364.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.