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Finding the Fourth Proportional to 292,287.60, 438,301.80 and 134,434.80

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Solution

The fourth proportional to 292,287.60, 438,301.80 and 134,434.80 is: 201,592.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,287.60 : 438,301.80 = 134,434.80 : x
  2. Step 2: Convert to fraction form
    292,287.60/438,301.80 = 134,434.80/x
  3. Step 3: Cross multiply
    292,287.60x = 438,301.80 × 134,434.80
  4. Step 4: Simplify right side
    292,287.60x = 58,923,014,822.64
  5. Step 5: Solve for x
    x = 58,923,014,822.64/292,287.60
  6. Step 6: Final answer
    x = 201,592.59

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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.