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Finding the Fourth Proportional to 315,899.61, 435,941.37 and 179,946.15

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Solution

The fourth proportional to 315,899.61, 435,941.37 and 179,946.15 is: 248,325.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,899.61 : 435,941.37 = 179,946.15 : x
  2. Step 2: Convert to fraction form
    315,899.61/435,941.37 = 179,946.15/x
  3. Step 3: Cross multiply
    315,899.61x = 435,941.37 × 179,946.15
  4. Step 4: Simplify right side
    315,899.61x = 78,445,971,157.23
  5. Step 5: Solve for x
    x = 78,445,971,157.23/315,899.61
  6. Step 6: Final answer
    x = 248,325.63

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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.