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Finding the Fourth Proportional to 311,540.22, 429,925.23 and 168,300.18

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Solution

The fourth proportional to 311,540.22, 429,925.23 and 168,300.18 is: 232,254.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,540.22 : 429,925.23 = 168,300.18 : x
  2. Step 2: Convert to fraction form
    311,540.22/429,925.23 = 168,300.18/x
  3. Step 3: Cross multiply
    311,540.22x = 429,925.23 × 168,300.18
  4. Step 4: Simplify right side
    311,540.22x = 72,356,493,595.54
  5. Step 5: Solve for x
    x = 72,356,493,595.54/311,540.22
  6. Step 6: Final answer
    x = 232,254.10

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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.