Home / 255,030.63-351,928.40-140,290.58

Finding the Fourth Proportional to 255,030.63, 351,928.40 and 140,290.58

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Solution

The fourth proportional to 255,030.63, 351,928.40 and 140,290.58 is: 193,593.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,030.63 : 351,928.40 = 140,290.58 : x
  2. Step 2: Convert to fraction form
    255,030.63/351,928.40 = 140,290.58/x
  3. Step 3: Cross multiply
    255,030.63x = 351,928.40 × 140,290.58
  4. Step 4: Simplify right side
    255,030.63x = 49,372,239,532.84
  5. Step 5: Solve for x
    x = 49,372,239,532.84/255,030.63
  6. Step 6: Final answer
    x = 193,593.37

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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.