Home / 311,426.30-429,768.26-168,186.32

Finding the Fourth Proportional to 311,426.30, 429,768.26 and 168,186.32

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Solution

The fourth proportional to 311,426.30, 429,768.26 and 168,186.32 is: 232,097.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,426.30 : 429,768.26 = 168,186.32 : x
  2. Step 2: Convert to fraction form
    311,426.30/429,768.26 = 168,186.32/x
  3. Step 3: Cross multiply
    311,426.30x = 429,768.26 × 168,186.32
  4. Step 4: Simplify right side
    311,426.30x = 72,281,141,354.76
  5. Step 5: Solve for x
    x = 72,281,141,354.76/311,426.30
  6. Step 6: Final answer
    x = 232,097.10

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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.