Home / 371,621.45-512,873.37-208,277.16

Finding the Fourth Proportional to 371,621.45, 512,873.37 and 208,277.16

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Solution

The fourth proportional to 371,621.45, 512,873.37 and 208,277.16 is: 287,442.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,621.45 : 512,873.37 = 208,277.16 : x
  2. Step 2: Convert to fraction form
    371,621.45/512,873.37 = 208,277.16/x
  3. Step 3: Cross multiply
    371,621.45x = 512,873.37 × 208,277.16
  4. Step 4: Simplify right side
    371,621.45x = 106,819,808,943.23
  5. Step 5: Solve for x
    x = 106,819,808,943.23/371,621.45
  6. Step 6: Final answer
    x = 287,442.53

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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.