Home / 338,890.02-507,980.35-114,172.80

Finding the Fourth Proportional to 338,890.02, 507,980.35 and 114,172.80

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Solution

The fourth proportional to 338,890.02, 507,980.35 and 114,172.80 is: 171,139.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,890.02 : 507,980.35 = 114,172.80 : x
  2. Step 2: Convert to fraction form
    338,890.02/507,980.35 = 114,172.80/x
  3. Step 3: Cross multiply
    338,890.02x = 507,980.35 × 114,172.80
  4. Step 4: Simplify right side
    338,890.02x = 57,997,538,904.48
  5. Step 5: Solve for x
    x = 57,997,538,904.48/338,890.02
  6. Step 6: Final answer
    x = 171,139.71

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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.