Home / 282,968.56-390,490.16-155,641.44

Finding the Fourth Proportional to 282,968.56, 390,490.16 and 155,641.44

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Solution

The fourth proportional to 282,968.56, 390,490.16 and 155,641.44 is: 214,781.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,968.56 : 390,490.16 = 155,641.44 : x
  2. Step 2: Convert to fraction form
    282,968.56/390,490.16 = 155,641.44/x
  3. Step 3: Cross multiply
    282,968.56x = 390,490.16 × 155,641.44
  4. Step 4: Simplify right side
    282,968.56x = 60,776,450,808.23
  5. Step 5: Solve for x
    x = 60,776,450,808.23/282,968.56
  6. Step 6: Final answer
    x = 214,781.64

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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.