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Finding the Fourth Proportional to 418,995, 628,506.54 and 166,322.52

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Solution

The fourth proportional to 418,995, 628,506.54 and 166,322.52 is: 249,489.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,995 : 628,506.54 = 166,322.52 : x
  2. Step 2: Convert to fraction form
    418,995/628,506.54 = 166,322.52/x
  3. Step 3: Cross multiply
    418,995x = 628,506.54 × 166,322.52
  4. Step 4: Simplify right side
    418,995x = 104,534,791,569.28
  5. Step 5: Solve for x
    x = 104,534,791,569.28/418,995
  6. Step 6: Final answer
    x = 249,489.35

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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.