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Finding the Fourth Proportional to 552,383.12, 828,681.60 and 215,410.16

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Solution

The fourth proportional to 552,383.12, 828,681.60 and 215,410.16 is: 323,156.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,383.12 : 828,681.60 = 215,410.16 : x
  2. Step 2: Convert to fraction form
    552,383.12/828,681.60 = 215,410.16/x
  3. Step 3: Cross multiply
    552,383.12x = 828,681.60 × 215,410.16
  4. Step 4: Simplify right side
    552,383.12x = 178,506,436,045.06
  5. Step 5: Solve for x
    x = 178,506,436,045.06/552,383.12
  6. Step 6: Final answer
    x = 323,156.94

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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.