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Finding the Fourth Proportional to 299,152.60, 411,990.78 and 292,620.76

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Solution

The fourth proportional to 299,152.60, 411,990.78 and 292,620.76 is: 402,995.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,152.60 : 411,990.78 = 292,620.76 : x
  2. Step 2: Convert to fraction form
    299,152.60/411,990.78 = 292,620.76/x
  3. Step 3: Cross multiply
    299,152.60x = 411,990.78 × 292,620.76
  4. Step 4: Simplify right side
    299,152.60x = 120,557,055,156.59
  5. Step 5: Solve for x
    x = 120,557,055,156.59/299,152.60
  6. Step 6: Final answer
    x = 402,995.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.