Home / 282,971.63-390,498.96-160,487.32

Finding the Fourth Proportional to 282,971.63, 390,498.96 and 160,487.32

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Solution

The fourth proportional to 282,971.63, 390,498.96 and 160,487.32 is: 221,471.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,971.63 : 390,498.96 = 160,487.32 : x
  2. Step 2: Convert to fraction form
    282,971.63/390,498.96 = 160,487.32/x
  3. Step 3: Cross multiply
    282,971.63x = 390,498.96 × 160,487.32
  4. Step 4: Simplify right side
    282,971.63x = 62,670,131,553.19
  5. Step 5: Solve for x
    x = 62,670,131,553.19/282,971.63
  6. Step 6: Final answer
    x = 221,471.43

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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.