Home / 289,699.02-399,783.38-162,374.62

Finding the Fourth Proportional to 289,699.02, 399,783.38 and 162,374.62

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Solution

The fourth proportional to 289,699.02, 399,783.38 and 162,374.62 is: 224,076.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,699.02 : 399,783.38 = 162,374.62 : x
  2. Step 2: Convert to fraction form
    289,699.02/399,783.38 = 162,374.62/x
  3. Step 3: Cross multiply
    289,699.02x = 399,783.38 × 162,374.62
  4. Step 4: Simplify right side
    289,699.02x = 64,914,674,409.82
  5. Step 5: Solve for x
    x = 64,914,674,409.82/289,699.02
  6. Step 6: Final answer
    x = 224,076.27

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1.5x scale

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.