Home / 379,443.24-523,664.80-209,710.16

Finding the Fourth Proportional to 379,443.24, 523,664.80 and 209,710.16

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Solution

The fourth proportional to 379,443.24, 523,664.80 and 209,710.16 is: 289,418.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,443.24 : 523,664.80 = 209,710.16 : x
  2. Step 2: Convert to fraction form
    379,443.24/523,664.80 = 209,710.16/x
  3. Step 3: Cross multiply
    379,443.24x = 523,664.80 × 209,710.16
  4. Step 4: Simplify right side
    379,443.24x = 109,817,828,994.37
  5. Step 5: Solve for x
    x = 109,817,828,994.37/379,443.24
  6. Step 6: Final answer
    x = 289,418.33

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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.