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Finding the Fourth Proportional to 304,798.35, 420,621.76 and 168,841.10

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Solution

The fourth proportional to 304,798.35, 420,621.76 and 168,841.10 is: 233,000.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,798.35 : 420,621.76 = 168,841.10 : x
  2. Step 2: Convert to fraction form
    304,798.35/420,621.76 = 168,841.10/x
  3. Step 3: Cross multiply
    304,798.35x = 420,621.76 × 168,841.10
  4. Step 4: Simplify right side
    304,798.35x = 71,018,240,955.21
  5. Step 5: Solve for x
    x = 71,018,240,955.21/304,798.35
  6. Step 6: Final answer
    x = 233,000.74

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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.