Home / 448,619.39-619,070.43-255,000.23

Finding the Fourth Proportional to 448,619.39, 619,070.43 and 255,000.23

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Solution

The fourth proportional to 448,619.39, 619,070.43 and 255,000.23 is: 351,886.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,619.39 : 619,070.43 = 255,000.23 : x
  2. Step 2: Convert to fraction form
    448,619.39/619,070.43 = 255,000.23/x
  3. Step 3: Cross multiply
    448,619.39x = 619,070.43 × 255,000.23
  4. Step 4: Simplify right side
    448,619.39x = 157,863,098,940.85
  5. Step 5: Solve for x
    x = 157,863,098,940.85/448,619.39
  6. Step 6: Final answer
    x = 351,886.49

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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.