Home / 379,447.03-523,637.09-209,681.16

Finding the Fourth Proportional to 379,447.03, 523,637.09 and 209,681.16

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Solution

The fourth proportional to 379,447.03, 523,637.09 and 209,681.16 is: 289,360.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,447.03 : 523,637.09 = 209,681.16 : x
  2. Step 2: Convert to fraction form
    379,447.03/523,637.09 = 209,681.16/x
  3. Step 3: Cross multiply
    379,447.03x = 523,637.09 × 209,681.16
  4. Step 4: Simplify right side
    379,447.03x = 109,796,832,450.22
  5. Step 5: Solve for x
    x = 109,796,832,450.22/379,447.03
  6. Step 6: Final answer
    x = 289,360.11

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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.