Home / 255,064.39-382,176.19-148,148.21

Finding the Fourth Proportional to 255,064.39, 382,176.19 and 148,148.21

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Solution

The fourth proportional to 255,064.39, 382,176.19 and 148,148.21 is: 221,978.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,064.39 : 382,176.19 = 148,148.21 : x
  2. Step 2: Convert to fraction form
    255,064.39/382,176.19 = 148,148.21/x
  3. Step 3: Cross multiply
    255,064.39x = 382,176.19 × 148,148.21
  4. Step 4: Simplify right side
    255,064.39x = 56,618,718,453.12
  5. Step 5: Solve for x
    x = 56,618,718,453.12/255,064.39
  6. Step 6: Final answer
    x = 221,978.14

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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.