Home / 380,393.42-524,936.50-210,623.90

Finding the Fourth Proportional to 380,393.42, 524,936.50 and 210,623.90

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Solution

The fourth proportional to 380,393.42, 524,936.50 and 210,623.90 is: 290,657.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,393.42 : 524,936.50 = 210,623.90 : x
  2. Step 2: Convert to fraction form
    380,393.42/524,936.50 = 210,623.90/x
  3. Step 3: Cross multiply
    380,393.42x = 524,936.50 × 210,623.90
  4. Step 4: Simplify right side
    380,393.42x = 110,564,169,731.11
  5. Step 5: Solve for x
    x = 110,564,169,731.11/380,393.42
  6. Step 6: Final answer
    x = 290,657.42

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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.