Home / 317,795.95-438,561.57-172,604.56

Finding the Fourth Proportional to 317,795.95, 438,561.57 and 172,604.56

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Solution

The fourth proportional to 317,795.95, 438,561.57 and 172,604.56 is: 238,196.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,795.95 : 438,561.57 = 172,604.56 : x
  2. Step 2: Convert to fraction form
    317,795.95/438,561.57 = 172,604.56/x
  3. Step 3: Cross multiply
    317,795.95x = 438,561.57 × 172,604.56
  4. Step 4: Simplify right side
    317,795.95x = 75,697,726,822.76
  5. Step 5: Solve for x
    x = 75,697,726,822.76/317,795.95
  6. Step 6: Final answer
    x = 238,196.01

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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.