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Finding the Fourth Proportional to 315,573.64, 435,432.98 and 179,599.49

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Solution

The fourth proportional to 315,573.64, 435,432.98 and 179,599.49 is: 247,813.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,573.64 : 435,432.98 = 179,599.49 : x
  2. Step 2: Convert to fraction form
    315,573.64/435,432.98 = 179,599.49/x
  3. Step 3: Cross multiply
    315,573.64x = 435,432.98 × 179,599.49
  4. Step 4: Simplify right side
    315,573.64x = 78,203,543,491.20
  5. Step 5: Solve for x
    x = 78,203,543,491.20/315,573.64
  6. Step 6: Final answer
    x = 247,813.93

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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.