Home / 405,917.55-560,152.40-224,637.12

Finding the Fourth Proportional to 405,917.55, 560,152.40 and 224,637.12

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Solution

The fourth proportional to 405,917.55, 560,152.40 and 224,637.12 is: 309,991.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,917.55 : 560,152.40 = 224,637.12 : x
  2. Step 2: Convert to fraction form
    405,917.55/560,152.40 = 224,637.12/x
  3. Step 3: Cross multiply
    405,917.55x = 560,152.40 × 224,637.12
  4. Step 4: Simplify right side
    405,917.55x = 125,831,020,773.90
  5. Step 5: Solve for x
    x = 125,831,020,773.90/405,917.55
  6. Step 6: Final answer
    x = 309,991.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.