Home / 339,156.40-468,045.12-218,531.20

Finding the Fourth Proportional to 339,156.40, 468,045.12 and 218,531.20

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Solution

The fourth proportional to 339,156.40, 468,045.12 and 218,531.20 is: 301,579.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,156.40 : 468,045.12 = 218,531.20 : x
  2. Step 2: Convert to fraction form
    339,156.40/468,045.12 = 218,531.20/x
  3. Step 3: Cross multiply
    339,156.40x = 468,045.12 × 218,531.20
  4. Step 4: Simplify right side
    339,156.40x = 102,282,461,727.74
  5. Step 5: Solve for x
    x = 102,282,461,727.74/339,156.40
  6. Step 6: Final answer
    x = 301,579.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.