Home / 320,783.06-442,688.02-177,549.14

Finding the Fourth Proportional to 320,783.06, 442,688.02 and 177,549.14

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Solution

The fourth proportional to 320,783.06, 442,688.02 and 177,549.14 is: 245,021.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,783.06 : 442,688.02 = 177,549.14 : x
  2. Step 2: Convert to fraction form
    320,783.06/442,688.02 = 177,549.14/x
  3. Step 3: Cross multiply
    320,783.06x = 442,688.02 × 177,549.14
  4. Step 4: Simplify right side
    320,783.06x = 78,598,877,239.30
  5. Step 5: Solve for x
    x = 78,598,877,239.30/320,783.06
  6. Step 6: Final answer
    x = 245,021.91

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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.