Home / 255,104.80-382,663.50-121,999.12

Finding the Fourth Proportional to 255,104.80, 382,663.50 and 121,999.12

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Solution

The fourth proportional to 255,104.80, 382,663.50 and 121,999.12 is: 183,001.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,104.80 : 382,663.50 = 121,999.12 : x
  2. Step 2: Convert to fraction form
    255,104.80/382,663.50 = 121,999.12/x
  3. Step 3: Cross multiply
    255,104.80x = 382,663.50 × 121,999.12
  4. Step 4: Simplify right side
    255,104.80x = 46,684,610,256.12
  5. Step 5: Solve for x
    x = 46,684,610,256.12/255,104.80
  6. Step 6: Final answer
    x = 183,001.69

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1.5x scale

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.