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Finding the Fourth Proportional to 368,483.76, 508,569.48 and 213,412.32

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Solution

The fourth proportional to 368,483.76, 508,569.48 and 213,412.32 is: 294,544.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,483.76 : 508,569.48 = 213,412.32 : x
  2. Step 2: Convert to fraction form
    368,483.76/508,569.48 = 213,412.32/x
  3. Step 3: Cross multiply
    368,483.76x = 508,569.48 × 213,412.32
  4. Step 4: Simplify right side
    368,483.76x = 108,534,992,607.99
  5. Step 5: Solve for x
    x = 108,534,992,607.99/368,483.76
  6. Step 6: Final answer
    x = 294,544.85

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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.