Home / 268,000.16-401,938.85-159,960

Finding the Fourth Proportional to 268,000.16, 401,938.85 and 159,960

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Solution

The fourth proportional to 268,000.16, 401,938.85 and 159,960 is: 239,903.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,000.16 : 401,938.85 = 159,960 : x
  2. Step 2: Convert to fraction form
    268,000.16/401,938.85 = 159,960/x
  3. Step 3: Cross multiply
    268,000.16x = 401,938.85 × 159,960
  4. Step 4: Simplify right side
    268,000.16x = 64,294,137,646.20
  5. Step 5: Solve for x
    x = 64,294,137,646.20/268,000.16
  6. Step 6: Final answer
    x = 239,903.36

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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.