Home / 292,582.72-438,889.20-92,918.80

Finding the Fourth Proportional to 292,582.72, 438,889.20 and 92,918.80

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Solution

The fourth proportional to 292,582.72, 438,889.20 and 92,918.80 is: 139,383.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,582.72 : 438,889.20 = 92,918.80 : x
  2. Step 2: Convert to fraction form
    292,582.72/438,889.20 = 92,918.80/x
  3. Step 3: Cross multiply
    292,582.72x = 438,889.20 × 92,918.80
  4. Step 4: Simplify right side
    292,582.72x = 40,781,057,796.96
  5. Step 5: Solve for x
    x = 40,781,057,796.96/292,582.72
  6. Step 6: Final answer
    x = 139,383.00

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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.