Home / 278,867.63-384,839.77-151,543.23

Finding the Fourth Proportional to 278,867.63, 384,839.77 and 151,543.23

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Solution

The fourth proportional to 278,867.63, 384,839.77 and 151,543.23 is: 209,130.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,867.63 : 384,839.77 = 151,543.23 : x
  2. Step 2: Convert to fraction form
    278,867.63/384,839.77 = 151,543.23/x
  3. Step 3: Cross multiply
    278,867.63x = 384,839.77 × 151,543.23
  4. Step 4: Simplify right side
    278,867.63x = 58,319,861,778.26
  5. Step 5: Solve for x
    x = 58,319,861,778.26/278,867.63
  6. Step 6: Final answer
    x = 209,130.98

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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.