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Finding the Fourth Proportional to 311,030.08, 429,073.68 and 183,620.32

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Solution

The fourth proportional to 311,030.08, 429,073.68 and 183,620.32 is: 253,308.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,030.08 : 429,073.68 = 183,620.32 : x
  2. Step 2: Convert to fraction form
    311,030.08/429,073.68 = 183,620.32/x
  3. Step 3: Cross multiply
    311,030.08x = 429,073.68 × 183,620.32
  4. Step 4: Simplify right side
    311,030.08x = 78,786,646,425.18
  5. Step 5: Solve for x
    x = 78,786,646,425.18/311,030.08
  6. Step 6: Final answer
    x = 253,308.77

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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.