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Finding the Fourth Proportional to 304,495.52, 420,204.69 and 168,538.91

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Solution

The fourth proportional to 304,495.52, 420,204.69 and 168,538.91 is: 232,584.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,495.52 : 420,204.69 = 168,538.91 : x
  2. Step 2: Convert to fraction form
    304,495.52/420,204.69 = 168,538.91/x
  3. Step 3: Cross multiply
    304,495.52x = 420,204.69 × 168,538.91
  4. Step 4: Simplify right side
    304,495.52x = 70,820,838,328.46
  5. Step 5: Solve for x
    x = 70,820,838,328.46/304,495.52
  6. Step 6: Final answer
    x = 232,584.18

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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.