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Finding the Fourth Proportional to 805,341.60, 1,208,007.60 and 206,301.60

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Solution

The fourth proportional to 805,341.60, 1,208,007.60 and 206,301.60 is: 309,451.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,341.60 : 1,208,007.60 = 206,301.60 : x
  2. Step 2: Convert to fraction form
    805,341.60/1,208,007.60 = 206,301.60/x
  3. Step 3: Cross multiply
    805,341.60x = 1,208,007.60 × 206,301.60
  4. Step 4: Simplify right side
    805,341.60x = 249,213,900,692.16
  5. Step 5: Solve for x
    x = 249,213,900,692.16/805,341.60
  6. Step 6: Final answer
    x = 309,451.17

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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.