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Finding the Fourth Proportional to 292,892.80, 438,820.80 and 274,230.40

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Solution

The fourth proportional to 292,892.80, 438,820.80 and 274,230.40 is: 410,860.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,892.80 : 438,820.80 = 274,230.40 : x
  2. Step 2: Convert to fraction form
    292,892.80/438,820.80 = 274,230.40/x
  3. Step 3: Cross multiply
    292,892.80x = 438,820.80 × 274,230.40
  4. Step 4: Simplify right side
    292,892.80x = 120,338,003,512.32
  5. Step 5: Solve for x
    x = 120,338,003,512.32/292,892.80
  6. Step 6: Final answer
    x = 410,860.23

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1.5x scale

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.