Home / 282,935.74-390,459.57-155,619.58

Finding the Fourth Proportional to 282,935.74, 390,459.57 and 155,619.58

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Solution

The fourth proportional to 282,935.74, 390,459.57 and 155,619.58 is: 214,759.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,935.74 : 390,459.57 = 155,619.58 : x
  2. Step 2: Convert to fraction form
    282,935.74/390,459.57 = 155,619.58/x
  3. Step 3: Cross multiply
    282,935.74x = 390,459.57 × 155,619.58
  4. Step 4: Simplify right side
    282,935.74x = 60,763,154,290.38
  5. Step 5: Solve for x
    x = 60,763,154,290.38/282,935.74
  6. Step 6: Final answer
    x = 214,759.56

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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.