Home / 282,653.12-390,042.96-161,795.36

Finding the Fourth Proportional to 282,653.12, 390,042.96 and 161,795.36

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Solution

The fourth proportional to 282,653.12, 390,042.96 and 161,795.36 is: 223,267.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,653.12 : 390,042.96 = 161,795.36 : x
  2. Step 2: Convert to fraction form
    282,653.12/390,042.96 = 161,795.36/x
  3. Step 3: Cross multiply
    282,653.12x = 390,042.96 × 161,795.36
  4. Step 4: Simplify right side
    282,653.12x = 63,107,141,128.67
  5. Step 5: Solve for x
    x = 63,107,141,128.67/282,653.12
  6. Step 6: Final answer
    x = 223,267.10

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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.