Home / 309,733.98-426,980.46-218,929.74

Finding the Fourth Proportional to 309,733.98, 426,980.46 and 218,929.74

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Solution

The fourth proportional to 309,733.98, 426,980.46 and 218,929.74 is: 301,803.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,733.98 : 426,980.46 = 218,929.74 : x
  2. Step 2: Convert to fraction form
    309,733.98/426,980.46 = 218,929.74/x
  3. Step 3: Cross multiply
    309,733.98x = 426,980.46 × 218,929.74
  4. Step 4: Simplify right side
    309,733.98x = 93,478,721,092.88
  5. Step 5: Solve for x
    x = 93,478,721,092.88/309,733.98
  6. Step 6: Final answer
    x = 301,803.25

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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.