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Finding the Fourth Proportional to 366,897.60, 550,346.40 and 278,324.10

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Solution

The fourth proportional to 366,897.60, 550,346.40 and 278,324.10 is: 417,486.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,897.60 : 550,346.40 = 278,324.10 : x
  2. Step 2: Convert to fraction form
    366,897.60/550,346.40 = 278,324.10/x
  3. Step 3: Cross multiply
    366,897.60x = 550,346.40 × 278,324.10
  4. Step 4: Simplify right side
    366,897.60x = 153,174,666,468.24
  5. Step 5: Solve for x
    x = 153,174,666,468.24/366,897.60
  6. Step 6: Final answer
    x = 417,486.15

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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.