Home / 218,934.09-302,128.92-118,332.09

Finding the Fourth Proportional to 218,934.09, 302,128.92 and 118,332.09

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Solution

The fourth proportional to 218,934.09, 302,128.92 and 118,332.09 is: 163,298.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,934.09 : 302,128.92 = 118,332.09 : x
  2. Step 2: Convert to fraction form
    218,934.09/302,128.92 = 118,332.09/x
  3. Step 3: Cross multiply
    218,934.09x = 302,128.92 × 118,332.09
  4. Step 4: Simplify right side
    218,934.09x = 35,751,546,553.04
  5. Step 5: Solve for x
    x = 35,751,546,553.04/218,934.09
  6. Step 6: Final answer
    x = 163,298.22

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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.