Home / 280,627.26-387,271.32-153,311.08

Finding the Fourth Proportional to 280,627.26, 387,271.32 and 153,311.08

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Solution

The fourth proportional to 280,627.26, 387,271.32 and 153,311.08 is: 211,572.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,627.26 : 387,271.32 = 153,311.08 : x
  2. Step 2: Convert to fraction form
    280,627.26/387,271.32 = 153,311.08/x
  3. Step 3: Cross multiply
    280,627.26x = 387,271.32 × 153,311.08
  4. Step 4: Simplify right side
    280,627.26x = 59,372,984,322.23
  5. Step 5: Solve for x
    x = 59,372,984,322.23/280,627.26
  6. Step 6: Final answer
    x = 211,572.41

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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.