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Finding the Fourth Proportional to 304,721.48, 420,516.81 and 168,752.45

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Solution

The fourth proportional to 304,721.48, 420,516.81 and 168,752.45 is: 232,879.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,721.48 : 420,516.81 = 168,752.45 : x
  2. Step 2: Convert to fraction form
    304,721.48/420,516.81 = 168,752.45/x
  3. Step 3: Cross multiply
    304,721.48x = 420,516.81 × 168,752.45
  4. Step 4: Simplify right side
    304,721.48x = 70,963,241,953.68
  5. Step 5: Solve for x
    x = 70,963,241,953.68/304,721.48
  6. Step 6: Final answer
    x = 232,879.03

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1.5x scale

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.