Home / 382,837.98-528,307.09-210,754.55

Finding the Fourth Proportional to 382,837.98, 528,307.09 and 210,754.55

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Solution

The fourth proportional to 382,837.98, 528,307.09 and 210,754.55 is: 290,836.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,837.98 : 528,307.09 = 210,754.55 : x
  2. Step 2: Convert to fraction form
    382,837.98/528,307.09 = 210,754.55/x
  3. Step 3: Cross multiply
    382,837.98x = 528,307.09 × 210,754.55
  4. Step 4: Simplify right side
    382,837.98x = 111,343,120,373.22
  5. Step 5: Solve for x
    x = 111,343,120,373.22/382,837.98
  6. Step 6: Final answer
    x = 290,836.14

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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.