Home / 210,723.60-315,307.80-192,061.20

Finding the Fourth Proportional to 210,723.60, 315,307.80 and 192,061.20

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Solution

The fourth proportional to 210,723.60, 315,307.80 and 192,061.20 is: 287,383.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,723.60 : 315,307.80 = 192,061.20 : x
  2. Step 2: Convert to fraction form
    210,723.60/315,307.80 = 192,061.20/x
  3. Step 3: Cross multiply
    210,723.60x = 315,307.80 × 192,061.20
  4. Step 4: Simplify right side
    210,723.60x = 60,558,394,437.36
  5. Step 5: Solve for x
    x = 60,558,394,437.36/210,723.60
  6. Step 6: Final answer
    x = 287,383.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.