Home / 287,905.19-397,309.73-160,589.03

Finding the Fourth Proportional to 287,905.19, 397,309.73 and 160,589.03

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Solution

The fourth proportional to 287,905.19, 397,309.73 and 160,589.03 is: 221,613.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,905.19 : 397,309.73 = 160,589.03 : x
  2. Step 2: Convert to fraction form
    287,905.19/397,309.73 = 160,589.03/x
  3. Step 3: Cross multiply
    287,905.19x = 397,309.73 × 160,589.03
  4. Step 4: Simplify right side
    287,905.19x = 63,803,583,347.32
  5. Step 5: Solve for x
    x = 63,803,583,347.32/287,905.19
  6. Step 6: Final answer
    x = 221,613.18

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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.