Home / 320,705.49-480,916.02-170,917.86

Finding the Fourth Proportional to 320,705.49, 480,916.02 and 170,917.86

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Solution

The fourth proportional to 320,705.49, 480,916.02 and 170,917.86 is: 256,301.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,705.49 : 480,916.02 = 170,917.86 : x
  2. Step 2: Convert to fraction form
    320,705.49/480,916.02 = 170,917.86/x
  3. Step 3: Cross multiply
    320,705.49x = 480,916.02 × 170,917.86
  4. Step 4: Simplify right side
    320,705.49x = 82,197,136,978.12
  5. Step 5: Solve for x
    x = 82,197,136,978.12/320,705.49
  6. Step 6: Final answer
    x = 256,301.00

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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.