Home / 328,617.10-493,012.98-103,981.52

Finding the Fourth Proportional to 328,617.10, 493,012.98 and 103,981.52

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Solution

The fourth proportional to 328,617.10, 493,012.98 and 103,981.52 is: 155,999.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,617.10 : 493,012.98 = 103,981.52 : x
  2. Step 2: Convert to fraction form
    328,617.10/493,012.98 = 103,981.52/x
  3. Step 3: Cross multiply
    328,617.10x = 493,012.98 × 103,981.52
  4. Step 4: Simplify right side
    328,617.10x = 51,264,240,272.66
  5. Step 5: Solve for x
    x = 51,264,240,272.66/328,617.10
  6. Step 6: Final answer
    x = 155,999.92

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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.