Home / 300,985.18-415,343.65-171,898.11

Finding the Fourth Proportional to 300,985.18, 415,343.65 and 171,898.11

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Solution

The fourth proportional to 300,985.18, 415,343.65 and 171,898.11 is: 237,210.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,985.18 : 415,343.65 = 171,898.11 : x
  2. Step 2: Convert to fraction form
    300,985.18/415,343.65 = 171,898.11/x
  3. Step 3: Cross multiply
    300,985.18x = 415,343.65 × 171,898.11
  4. Step 4: Simplify right side
    300,985.18x = 71,396,788,435.50
  5. Step 5: Solve for x
    x = 71,396,788,435.50/300,985.18
  6. Step 6: Final answer
    x = 237,210.31

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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.