Home / 351,971.04-528,031.20-115,296

Finding the Fourth Proportional to 351,971.04, 528,031.20 and 115,296

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Solution

The fourth proportional to 351,971.04, 528,031.20 and 115,296 is: 172,968.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,971.04 : 528,031.20 = 115,296 : x
  2. Step 2: Convert to fraction form
    351,971.04/528,031.20 = 115,296/x
  3. Step 3: Cross multiply
    351,971.04x = 528,031.20 × 115,296
  4. Step 4: Simplify right side
    351,971.04x = 60,879,885,235.20
  5. Step 5: Solve for x
    x = 60,879,885,235.20/351,971.04
  6. Step 6: Final answer
    x = 172,968.45

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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.