Home / 384,465.78-576,987.30-144,816.12

Finding the Fourth Proportional to 384,465.78, 576,987.30 and 144,816.12

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Solution

The fourth proportional to 384,465.78, 576,987.30 and 144,816.12 is: 217,332.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,465.78 : 576,987.30 = 144,816.12 : x
  2. Step 2: Convert to fraction form
    384,465.78/576,987.30 = 144,816.12/x
  3. Step 3: Cross multiply
    384,465.78x = 576,987.30 × 144,816.12
  4. Step 4: Simplify right side
    384,465.78x = 83,557,062,075.28
  5. Step 5: Solve for x
    x = 83,557,062,075.28/384,465.78
  6. Step 6: Final answer
    x = 217,332.90

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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.