Home / 287,722.40-397,057.41-160,395.26

Finding the Fourth Proportional to 287,722.40, 397,057.41 and 160,395.26

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Solution

The fourth proportional to 287,722.40, 397,057.41 and 160,395.26 is: 221,345.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,722.40 : 397,057.41 = 160,395.26 : x
  2. Step 2: Convert to fraction form
    287,722.40/397,057.41 = 160,395.26/x
  3. Step 3: Cross multiply
    287,722.40x = 397,057.41 × 160,395.26
  4. Step 4: Simplify right side
    287,722.40x = 63,686,124,526.59
  5. Step 5: Solve for x
    x = 63,686,124,526.59/287,722.40
  6. Step 6: Final answer
    x = 221,345.73

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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.