Home / 280,055.26-386,485.59-152,738.02

Finding the Fourth Proportional to 280,055.26, 386,485.59 and 152,738.02

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Solution

The fourth proportional to 280,055.26, 386,485.59 and 152,738.02 is: 210,783.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,055.26 : 386,485.59 = 152,738.02 : x
  2. Step 2: Convert to fraction form
    280,055.26/386,485.59 = 152,738.02/x
  3. Step 3: Cross multiply
    280,055.26x = 386,485.59 × 152,738.02
  4. Step 4: Simplify right side
    280,055.26x = 59,031,043,775.13
  5. Step 5: Solve for x
    x = 59,031,043,775.13/280,055.26
  6. Step 6: Final answer
    x = 210,783.56

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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.