Home / 287,529.61-396,781.71-180,157.63

Finding the Fourth Proportional to 287,529.61, 396,781.71 and 180,157.63

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Solution

The fourth proportional to 287,529.61, 396,781.71 and 180,157.63 is: 248,611.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,529.61 : 396,781.71 = 180,157.63 : x
  2. Step 2: Convert to fraction form
    287,529.61/396,781.71 = 180,157.63/x
  3. Step 3: Cross multiply
    287,529.61x = 396,781.71 × 180,157.63
  4. Step 4: Simplify right side
    287,529.61x = 71,483,252,500.95
  5. Step 5: Solve for x
    x = 71,483,252,500.95/287,529.61
  6. Step 6: Final answer
    x = 248,611.80

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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.