Home / 380,416.96-524,968.95-210,647.44

Finding the Fourth Proportional to 380,416.96, 524,968.95 and 210,647.44

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Solution

The fourth proportional to 380,416.96, 524,968.95 and 210,647.44 is: 290,689.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,416.96 : 524,968.95 = 210,647.44 : x
  2. Step 2: Convert to fraction form
    380,416.96/524,968.95 = 210,647.44/x
  3. Step 3: Cross multiply
    380,416.96x = 524,968.95 × 210,647.44
  4. Step 4: Simplify right side
    380,416.96x = 110,583,365,396.99
  5. Step 5: Solve for x
    x = 110,583,365,396.99/380,416.96
  6. Step 6: Final answer
    x = 290,689.89

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1.5x scale

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.