Home / 229,509.30-344,123-79,685.22

Finding the Fourth Proportional to 229,509.30, 344,123 and 79,685.22

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Solution

The fourth proportional to 229,509.30, 344,123 and 79,685.22 is: 119,478.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,509.30 : 344,123 = 79,685.22 : x
  2. Step 2: Convert to fraction form
    229,509.30/344,123 = 79,685.22/x
  3. Step 3: Cross multiply
    229,509.30x = 344,123 × 79,685.22
  4. Step 4: Simplify right side
    229,509.30x = 27,421,516,962.06
  5. Step 5: Solve for x
    x = 27,421,516,962.06/229,509.30
  6. Step 6: Final answer
    x = 119,478.89

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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.