Home / 282,619.52-390,015.28-155,302.64

Finding the Fourth Proportional to 282,619.52, 390,015.28 and 155,302.64

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Solution

The fourth proportional to 282,619.52, 390,015.28 and 155,302.64 is: 214,317.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,619.52 : 390,015.28 = 155,302.64 : x
  2. Step 2: Convert to fraction form
    282,619.52/390,015.28 = 155,302.64/x
  3. Step 3: Cross multiply
    282,619.52x = 390,015.28 × 155,302.64
  4. Step 4: Simplify right side
    282,619.52x = 60,570,402,624.34
  5. Step 5: Solve for x
    x = 60,570,402,624.34/282,619.52
  6. Step 6: Final answer
    x = 214,317.83

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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.