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Finding the Fourth Proportional to 358,890.72, 538,336.88 and 336,968.88

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Solution

The fourth proportional to 358,890.72, 538,336.88 and 336,968.88 is: 505,454.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,890.72 : 538,336.88 = 336,968.88 : x
  2. Step 2: Convert to fraction form
    358,890.72/538,336.88 = 336,968.88/x
  3. Step 3: Cross multiply
    358,890.72x = 538,336.88 × 336,968.88
  4. Step 4: Simplify right side
    358,890.72x = 181,402,775,516.29
  5. Step 5: Solve for x
    x = 181,402,775,516.29/358,890.72
  6. Step 6: Final answer
    x = 505,454.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.