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Finding the Fourth Proportional to 405,030.81, 559,010.75 and 235,363.35

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Solution

The fourth proportional to 405,030.81, 559,010.75 and 235,363.35 is: 324,841.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,030.81 : 559,010.75 = 235,363.35 : x
  2. Step 2: Convert to fraction form
    405,030.81/559,010.75 = 235,363.35/x
  3. Step 3: Cross multiply
    405,030.81x = 559,010.75 × 235,363.35
  4. Step 4: Simplify right side
    405,030.81x = 131,570,642,806.01
  5. Step 5: Solve for x
    x = 131,570,642,806.01/405,030.81
  6. Step 6: Final answer
    x = 324,841.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.