Home / 336,118.50-503,999.55-99,428.40

Finding the Fourth Proportional to 336,118.50, 503,999.55 and 99,428.40

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Solution

The fourth proportional to 336,118.50, 503,999.55 and 99,428.40 is: 149,089.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,118.50 : 503,999.55 = 99,428.40 : x
  2. Step 2: Convert to fraction form
    336,118.50/503,999.55 = 99,428.40/x
  3. Step 3: Cross multiply
    336,118.50x = 503,999.55 × 99,428.40
  4. Step 4: Simplify right side
    336,118.50x = 50,111,868,857.22
  5. Step 5: Solve for x
    x = 50,111,868,857.22/336,118.50
  6. Step 6: Final answer
    x = 149,089.89

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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.