Home / 282,650.31-390,063.60-155,328.03

Finding the Fourth Proportional to 282,650.31, 390,063.60 and 155,328.03

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Solution

The fourth proportional to 282,650.31, 390,063.60 and 155,328.03 is: 214,356.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,650.31 : 390,063.60 = 155,328.03 : x
  2. Step 2: Convert to fraction form
    282,650.31/390,063.60 = 155,328.03/x
  3. Step 3: Cross multiply
    282,650.31x = 390,063.60 × 155,328.03
  4. Step 4: Simplify right side
    282,650.31x = 60,587,810,562.71
  5. Step 5: Solve for x
    x = 60,587,810,562.71/282,650.31
  6. Step 6: Final answer
    x = 214,356.07

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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.