Home / 255,077.10-382,364.55-142,811.10

Finding the Fourth Proportional to 255,077.10, 382,364.55 and 142,811.10

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Solution

The fourth proportional to 255,077.10, 382,364.55 and 142,811.10 is: 214,076.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,077.10 : 382,364.55 = 142,811.10 : x
  2. Step 2: Convert to fraction form
    255,077.10/382,364.55 = 142,811.10/x
  3. Step 3: Cross multiply
    255,077.10x = 382,364.55 × 142,811.10
  4. Step 4: Simplify right side
    255,077.10x = 54,605,901,986.51
  5. Step 5: Solve for x
    x = 54,605,901,986.51/255,077.10
  6. Step 6: Final answer
    x = 214,076.07

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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.