Home / 218,971.63-302,262.78-170,477.47

Finding the Fourth Proportional to 218,971.63, 302,262.78 and 170,477.47

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Solution

The fourth proportional to 218,971.63, 302,262.78 and 170,477.47 is: 235,322.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,971.63 : 302,262.78 = 170,477.47 : x
  2. Step 2: Convert to fraction form
    218,971.63/302,262.78 = 170,477.47/x
  3. Step 3: Cross multiply
    218,971.63x = 302,262.78 × 170,477.47
  4. Step 4: Simplify right side
    218,971.63x = 51,528,994,009.57
  5. Step 5: Solve for x
    x = 51,528,994,009.57/218,971.63
  6. Step 6: Final answer
    x = 235,322.69

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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.