Home / 272,669.40-409,004.10-188,688.60

Finding the Fourth Proportional to 272,669.40, 409,004.10 and 188,688.60

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Solution

The fourth proportional to 272,669.40, 409,004.10 and 188,688.60 is: 283,032.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,669.40 : 409,004.10 = 188,688.60 : x
  2. Step 2: Convert to fraction form
    272,669.40/409,004.10 = 188,688.60/x
  3. Step 3: Cross multiply
    272,669.40x = 409,004.10 × 188,688.60
  4. Step 4: Simplify right side
    272,669.40x = 77,174,411,023.26
  5. Step 5: Solve for x
    x = 77,174,411,023.26/272,669.40
  6. Step 6: Final answer
    x = 283,032.90

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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.