Home / 287,701.36-397,027.91-160,376.96

Finding the Fourth Proportional to 287,701.36, 397,027.91 and 160,376.96

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Solution

The fourth proportional to 287,701.36, 397,027.91 and 160,376.96 is: 221,320.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,701.36 : 397,027.91 = 160,376.96 : x
  2. Step 2: Convert to fraction form
    287,701.36/397,027.91 = 160,376.96/x
  3. Step 3: Cross multiply
    287,701.36x = 397,027.91 × 160,376.96
  4. Step 4: Simplify right side
    287,701.36x = 63,674,126,453.93
  5. Step 5: Solve for x
    x = 63,674,126,453.93/287,701.36
  6. Step 6: Final answer
    x = 221,320.22

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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.