Home / 338,962.80-508,946.40-189,501.60

Finding the Fourth Proportional to 338,962.80, 508,946.40 and 189,501.60

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Solution

The fourth proportional to 338,962.80, 508,946.40 and 189,501.60 is: 284,533.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,962.80 : 508,946.40 = 189,501.60 : x
  2. Step 2: Convert to fraction form
    338,962.80/508,946.40 = 189,501.60/x
  3. Step 3: Cross multiply
    338,962.80x = 508,946.40 × 189,501.60
  4. Step 4: Simplify right side
    338,962.80x = 96,446,157,114.24
  5. Step 5: Solve for x
    x = 96,446,157,114.24/338,962.80
  6. Step 6: Final answer
    x = 284,533.16

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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.