Home / 378,386.44-522,172.98-208,623.40

Finding the Fourth Proportional to 378,386.44, 522,172.98 and 208,623.40

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Solution

The fourth proportional to 378,386.44, 522,172.98 and 208,623.40 is: 287,900.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,386.44 : 522,172.98 = 208,623.40 : x
  2. Step 2: Convert to fraction form
    378,386.44/522,172.98 = 208,623.40/x
  3. Step 3: Cross multiply
    378,386.44x = 522,172.98 × 208,623.40
  4. Step 4: Simplify right side
    378,386.44x = 108,937,502,475.73
  5. Step 5: Solve for x
    x = 108,937,502,475.73/378,386.44
  6. Step 6: Final answer
    x = 287,900.12

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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.