Home / 423,277.68-634,877.64-142,797.36

Finding the Fourth Proportional to 423,277.68, 634,877.64 and 142,797.36

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Solution

The fourth proportional to 423,277.68, 634,877.64 and 142,797.36 is: 214,182.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,277.68 : 634,877.64 = 142,797.36 : x
  2. Step 2: Convert to fraction form
    423,277.68/634,877.64 = 142,797.36/x
  3. Step 3: Cross multiply
    423,277.68x = 634,877.64 × 142,797.36
  4. Step 4: Simplify right side
    423,277.68x = 90,658,850,915.03
  5. Step 5: Solve for x
    x = 90,658,850,915.03/423,277.68
  6. Step 6: Final answer
    x = 214,182.92

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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.