Home / 426,160.14-638,790.80-141,774.50

Finding the Fourth Proportional to 426,160.14, 638,790.80 and 141,774.50

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Solution

The fourth proportional to 426,160.14, 638,790.80 and 141,774.50 is: 212,512.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,160.14 : 638,790.80 = 141,774.50 : x
  2. Step 2: Convert to fraction form
    426,160.14/638,790.80 = 141,774.50/x
  3. Step 3: Cross multiply
    426,160.14x = 638,790.80 × 141,774.50
  4. Step 4: Simplify right side
    426,160.14x = 90,564,242,371.77
  5. Step 5: Solve for x
    x = 90,564,242,371.77/426,160.14
  6. Step 6: Final answer
    x = 212,512.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.