Home / 280,152.13-386,611.08-152,830.39

Finding the Fourth Proportional to 280,152.13, 386,611.08 and 152,830.39

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Solution

The fourth proportional to 280,152.13, 386,611.08 and 152,830.39 is: 210,906.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,152.13 : 386,611.08 = 152,830.39 : x
  2. Step 2: Convert to fraction form
    280,152.13/386,611.08 = 152,830.39/x
  3. Step 3: Cross multiply
    280,152.13x = 386,611.08 × 152,830.39
  4. Step 4: Simplify right side
    280,152.13x = 59,085,922,134.72
  5. Step 5: Solve for x
    x = 59,085,922,134.72/280,152.13
  6. Step 6: Final answer
    x = 210,906.56

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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.