Home / 282,215.30-389,457.23-161,358.98

Finding the Fourth Proportional to 282,215.30, 389,457.23 and 161,358.98

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Solution

The fourth proportional to 282,215.30, 389,457.23 and 161,358.98 is: 222,675.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,215.30 : 389,457.23 = 161,358.98 : x
  2. Step 2: Convert to fraction form
    282,215.30/389,457.23 = 161,358.98/x
  3. Step 3: Cross multiply
    282,215.30x = 389,457.23 × 161,358.98
  4. Step 4: Simplify right side
    282,215.30x = 62,842,418,632.34
  5. Step 5: Solve for x
    x = 62,842,418,632.34/282,215.30
  6. Step 6: Final answer
    x = 222,675.45

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1.5x scale

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.