Home / 219,181.86-302,467.98-122,387.21

Finding the Fourth Proportional to 219,181.86, 302,467.98 and 122,387.21

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Solution

The fourth proportional to 219,181.86, 302,467.98 and 122,387.21 is: 168,892.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,181.86 : 302,467.98 = 122,387.21 : x
  2. Step 2: Convert to fraction form
    219,181.86/302,467.98 = 122,387.21/x
  3. Step 3: Cross multiply
    219,181.86x = 302,467.98 × 122,387.21
  4. Step 4: Simplify right side
    219,181.86x = 37,018,210,674.20
  5. Step 5: Solve for x
    x = 37,018,210,674.20/219,181.86
  6. Step 6: Final answer
    x = 168,892.68

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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.