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Finding the Fourth Proportional to 358,689.60, 538,034.40 and 246,715.20

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Solution

The fourth proportional to 358,689.60, 538,034.40 and 246,715.20 is: 370,072.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,689.60 : 538,034.40 = 246,715.20 : x
  2. Step 2: Convert to fraction form
    358,689.60/538,034.40 = 246,715.20/x
  3. Step 3: Cross multiply
    358,689.60x = 538,034.40 × 246,715.20
  4. Step 4: Simplify right side
    358,689.60x = 132,741,264,602.88
  5. Step 5: Solve for x
    x = 132,741,264,602.88/358,689.60
  6. Step 6: Final answer
    x = 370,072.80

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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.