Home / 436,428.81-653,424.26-236,031.21

Finding the Fourth Proportional to 436,428.81, 653,424.26 and 236,031.21

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Solution

The fourth proportional to 436,428.81, 653,424.26 and 236,031.21 is: 353,387.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,428.81 : 653,424.26 = 236,031.21 : x
  2. Step 2: Convert to fraction form
    436,428.81/653,424.26 = 236,031.21/x
  3. Step 3: Cross multiply
    436,428.81x = 653,424.26 × 236,031.21
  4. Step 4: Simplify right side
    436,428.81x = 154,228,517,551.00
  5. Step 5: Solve for x
    x = 154,228,517,551.00/436,428.81
  6. Step 6: Final answer
    x = 353,387.57

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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.