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Finding the Fourth Proportional to 282,360.63, 389,663.96 and 155,036.73

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Solution

The fourth proportional to 282,360.63, 389,663.96 and 155,036.73 is: 213,954.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,360.63 : 389,663.96 = 155,036.73 : x
  2. Step 2: Convert to fraction form
    282,360.63/389,663.96 = 155,036.73/x
  3. Step 3: Cross multiply
    282,360.63x = 389,663.96 × 155,036.73
  4. Step 4: Simplify right side
    282,360.63x = 60,412,225,382.07
  5. Step 5: Solve for x
    x = 60,412,225,382.07/282,360.63
  6. Step 6: Final answer
    x = 213,954.14

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1.5x scale

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.