Home / 255,390.12-382,629.60-155,498.76

Finding the Fourth Proportional to 255,390.12, 382,629.60 and 155,498.76

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Solution

The fourth proportional to 255,390.12, 382,629.60 and 155,498.76 is: 232,970.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,390.12 : 382,629.60 = 155,498.76 : x
  2. Step 2: Convert to fraction form
    255,390.12/382,629.60 = 155,498.76/x
  3. Step 3: Cross multiply
    255,390.12x = 382,629.60 × 155,498.76
  4. Step 4: Simplify right side
    255,390.12x = 59,498,428,339.30
  5. Step 5: Solve for x
    x = 59,498,428,339.30/255,390.12
  6. Step 6: Final answer
    x = 232,970.75

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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.