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Finding the Fourth Proportional to 608,349.86, 912,586.66 and 208,938.66

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Solution

The fourth proportional to 608,349.86, 912,586.66 and 208,938.66 is: 313,429.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,349.86 : 912,586.66 = 208,938.66 : x
  2. Step 2: Convert to fraction form
    608,349.86/912,586.66 = 208,938.66/x
  3. Step 3: Cross multiply
    608,349.86x = 912,586.66 × 208,938.66
  4. Step 4: Simplify right side
    608,349.86x = 190,674,633,874.28
  5. Step 5: Solve for x
    x = 190,674,633,874.28/608,349.86
  6. Step 6: Final answer
    x = 313,429.24

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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.