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Finding the Fourth Proportional to 270,627.40, 405,941.10 and 104,415.40

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Solution

The fourth proportional to 270,627.40, 405,941.10 and 104,415.40 is: 156,623.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,627.40 : 405,941.10 = 104,415.40 : x
  2. Step 2: Convert to fraction form
    270,627.40/405,941.10 = 104,415.40/x
  3. Step 3: Cross multiply
    270,627.40x = 405,941.10 × 104,415.40
  4. Step 4: Simplify right side
    270,627.40x = 42,386,502,332.94
  5. Step 5: Solve for x
    x = 42,386,502,332.94/270,627.40
  6. Step 6: Final answer
    x = 156,623.10

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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.