Home / 255,111.30-382,338.90-155,165.40

Finding the Fourth Proportional to 255,111.30, 382,338.90 and 155,165.40

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Solution

The fourth proportional to 255,111.30, 382,338.90 and 155,165.40 is: 232,548.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,111.30 : 382,338.90 = 155,165.40 : x
  2. Step 2: Convert to fraction form
    255,111.30/382,338.90 = 155,165.40/x
  3. Step 3: Cross multiply
    255,111.30x = 382,338.90 × 155,165.40
  4. Step 4: Simplify right side
    255,111.30x = 59,325,768,354.06
  5. Step 5: Solve for x
    x = 59,325,768,354.06/255,111.30
  6. Step 6: Final answer
    x = 232,548.57

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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.