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Finding the Fourth Proportional to 353,547, 530,109 and 239,834.56

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Solution

The fourth proportional to 353,547, 530,109 and 239,834.56 is: 359,608.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,547 : 530,109 = 239,834.56 : x
  2. Step 2: Convert to fraction form
    353,547/530,109 = 239,834.56/x
  3. Step 3: Cross multiply
    353,547x = 530,109 × 239,834.56
  4. Step 4: Simplify right side
    353,547x = 127,138,458,767.04
  5. Step 5: Solve for x
    x = 127,138,458,767.04/353,547
  6. Step 6: Final answer
    x = 359,608.37

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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.