Home / 317,677.06-438,402-172,489.02

Finding the Fourth Proportional to 317,677.06, 438,402 and 172,489.02

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Solution

The fourth proportional to 317,677.06, 438,402 and 172,489.02 is: 238,039.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,677.06 : 438,402 = 172,489.02 : x
  2. Step 2: Convert to fraction form
    317,677.06/438,402 = 172,489.02/x
  3. Step 3: Cross multiply
    317,677.06x = 438,402 × 172,489.02
  4. Step 4: Simplify right side
    317,677.06x = 75,619,529,154.03
  5. Step 5: Solve for x
    x = 75,619,529,154.03/317,677.06
  6. Step 6: Final answer
    x = 238,039.00

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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.