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Finding the Fourth Proportional to 302,499.72, 452,956.86 and 213,270.12

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Solution

The fourth proportional to 302,499.72, 452,956.86 and 213,270.12 is: 319,346.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,499.72 : 452,956.86 = 213,270.12 : x
  2. Step 2: Convert to fraction form
    302,499.72/452,956.86 = 213,270.12/x
  3. Step 3: Cross multiply
    302,499.72x = 452,956.86 × 213,270.12
  4. Step 4: Simplify right side
    302,499.72x = 96,602,163,887.02
  5. Step 5: Solve for x
    x = 96,602,163,887.02/302,499.72
  6. Step 6: Final answer
    x = 319,346.29

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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.