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Finding the Fourth Proportional to 292,483.72, 438,907.02 and 134,734.60

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Solution

The fourth proportional to 292,483.72, 438,907.02 and 134,734.60 is: 202,185.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,483.72 : 438,907.02 = 134,734.60 : x
  2. Step 2: Convert to fraction form
    292,483.72/438,907.02 = 134,734.60/x
  3. Step 3: Cross multiply
    292,483.72x = 438,907.02 × 134,734.60
  4. Step 4: Simplify right side
    292,483.72x = 59,135,961,776.89
  5. Step 5: Solve for x
    x = 59,135,961,776.89/292,483.72
  6. Step 6: Final answer
    x = 202,185.48

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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.