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Finding the Fourth Proportional to 358,890.70, 538,336.86 and 336,968.86

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Solution

The fourth proportional to 358,890.70, 538,336.86 and 336,968.86 is: 505,454.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,890.70 : 538,336.86 = 336,968.86 : x
  2. Step 2: Convert to fraction form
    358,890.70/538,336.86 = 336,968.86/x
  3. Step 3: Cross multiply
    358,890.70x = 538,336.86 × 336,968.86
  4. Step 4: Simplify right side
    358,890.70x = 181,402,758,010.18
  5. Step 5: Solve for x
    x = 181,402,758,010.18/358,890.70
  6. Step 6: Final answer
    x = 505,454.05

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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.