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Finding the Fourth Proportional to 341,666.80, 512,055.60 and 139,026.70

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Solution

The fourth proportional to 341,666.80, 512,055.60 and 139,026.70 is: 208,359.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,666.80 : 512,055.60 = 139,026.70 : x
  2. Step 2: Convert to fraction form
    341,666.80/512,055.60 = 139,026.70/x
  3. Step 3: Cross multiply
    341,666.80x = 512,055.60 × 139,026.70
  4. Step 4: Simplify right side
    341,666.80x = 71,189,400,284.52
  5. Step 5: Solve for x
    x = 71,189,400,284.52/341,666.80
  6. Step 6: Final answer
    x = 208,359.14

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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.