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Finding the Fourth Proportional to 292,485.36, 438,793.68 and 92,812.24

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Solution

The fourth proportional to 292,485.36, 438,793.68 and 92,812.24 is: 139,239.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,485.36 : 438,793.68 = 92,812.24 : x
  2. Step 2: Convert to fraction form
    292,485.36/438,793.68 = 92,812.24/x
  3. Step 3: Cross multiply
    292,485.36x = 438,793.68 × 92,812.24
  4. Step 4: Simplify right side
    292,485.36x = 40,725,424,338.64
  5. Step 5: Solve for x
    x = 40,725,424,338.64/292,485.36
  6. Step 6: Final answer
    x = 139,239.19

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1.5x scale

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.