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Finding the Fourth Proportional to 219,959.82, 303,681.69 and 168,870.81

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Solution

The fourth proportional to 219,959.82, 303,681.69 and 168,870.81 is: 233,147.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,959.82 : 303,681.69 = 168,870.81 : x
  2. Step 2: Convert to fraction form
    219,959.82/303,681.69 = 168,870.81/x
  3. Step 3: Cross multiply
    219,959.82x = 303,681.69 × 168,870.81
  4. Step 4: Simplify right side
    219,959.82x = 51,282,972,972.47
  5. Step 5: Solve for x
    x = 51,282,972,972.47/219,959.82
  6. Step 6: Final answer
    x = 233,147.00

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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.