Home / 383,264.80-528,921.36-213,498.88

Finding the Fourth Proportional to 383,264.80, 528,921.36 and 213,498.88

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Solution

The fourth proportional to 383,264.80, 528,921.36 and 213,498.88 is: 294,637.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,264.80 : 528,921.36 = 213,498.88 : x
  2. Step 2: Convert to fraction form
    383,264.80/528,921.36 = 213,498.88/x
  3. Step 3: Cross multiply
    383,264.80x = 528,921.36 × 213,498.88
  4. Step 4: Simplify right side
    383,264.80x = 112,924,117,968.08
  5. Step 5: Solve for x
    x = 112,924,117,968.08/383,264.80
  6. Step 6: Final answer
    x = 294,637.33

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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.