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Finding the Fourth Proportional to 531,386.90, 797,235.64 and 171,549.30

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Solution

The fourth proportional to 531,386.90, 797,235.64 and 171,549.30 is: 257,374.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,386.90 : 797,235.64 = 171,549.30 : x
  2. Step 2: Convert to fraction form
    531,386.90/797,235.64 = 171,549.30/x
  3. Step 3: Cross multiply
    531,386.90x = 797,235.64 × 171,549.30
  4. Step 4: Simplify right side
    531,386.90x = 136,765,218,537.81
  5. Step 5: Solve for x
    x = 136,765,218,537.81/531,386.90
  6. Step 6: Final answer
    x = 257,374.09

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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.