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Finding the Fourth Proportional to 358,875.45, 538,314 and 336,953.61

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Solution

The fourth proportional to 358,875.45, 538,314 and 336,953.61 is: 505,431.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,875.45 : 538,314 = 336,953.61 : x
  2. Step 2: Convert to fraction form
    358,875.45/538,314 = 336,953.61/x
  3. Step 3: Cross multiply
    358,875.45x = 538,314 × 336,953.61
  4. Step 4: Simplify right side
    358,875.45x = 181,386,845,613.54
  5. Step 5: Solve for x
    x = 181,386,845,613.54/358,875.45
  6. Step 6: Final answer
    x = 505,431.19

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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.