Home / 282,904.44-390,400.36-155,580.04

Finding the Fourth Proportional to 282,904.44, 390,400.36 and 155,580.04

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Solution

The fourth proportional to 282,904.44, 390,400.36 and 155,580.04 is: 214,696.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,904.44 : 390,400.36 = 155,580.04 : x
  2. Step 2: Convert to fraction form
    282,904.44/390,400.36 = 155,580.04/x
  3. Step 3: Cross multiply
    282,904.44x = 390,400.36 × 155,580.04
  4. Step 4: Simplify right side
    282,904.44x = 60,738,503,624.81
  5. Step 5: Solve for x
    x = 60,738,503,624.81/282,904.44
  6. Step 6: Final answer
    x = 214,696.18

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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.