Home / 282,913.26-390,412.50-155,588.86

Finding the Fourth Proportional to 282,913.26, 390,412.50 and 155,588.86

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Solution

The fourth proportional to 282,913.26, 390,412.50 and 155,588.86 is: 214,708.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,913.26 : 390,412.50 = 155,588.86 : x
  2. Step 2: Convert to fraction form
    282,913.26/390,412.50 = 155,588.86/x
  3. Step 3: Cross multiply
    282,913.26x = 390,412.50 × 155,588.86
  4. Step 4: Simplify right side
    282,913.26x = 60,743,835,804.75
  5. Step 5: Solve for x
    x = 60,743,835,804.75/282,913.26
  6. Step 6: Final answer
    x = 214,708.34

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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.