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Finding the Fourth Proportional to 490,364.36, 735,545.45 and 130,535.29

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Solution

The fourth proportional to 490,364.36, 735,545.45 and 130,535.29 is: 195,802.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,364.36 : 735,545.45 = 130,535.29 : x
  2. Step 2: Convert to fraction form
    490,364.36/735,545.45 = 130,535.29/x
  3. Step 3: Cross multiply
    490,364.36x = 735,545.45 × 130,535.29
  4. Step 4: Simplify right side
    490,364.36x = 96,014,638,623.93
  5. Step 5: Solve for x
    x = 96,014,638,623.93/490,364.36
  6. Step 6: Final answer
    x = 195,802.64

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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.