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Finding the Fourth Proportional to 304,448.46, 420,130.26 and 168,488.07

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Solution

The fourth proportional to 304,448.46, 420,130.26 and 168,488.07 is: 232,508.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,448.46 : 420,130.26 = 168,488.07 : x
  2. Step 2: Convert to fraction form
    304,448.46/420,130.26 = 168,488.07/x
  3. Step 3: Cross multiply
    304,448.46x = 420,130.26 × 168,488.07
  4. Step 4: Simplify right side
    304,448.46x = 70,786,936,656.00
  5. Step 5: Solve for x
    x = 70,786,936,656.00/304,448.46
  6. Step 6: Final answer
    x = 232,508.77

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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.