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Finding the Fourth Proportional to 304,680.71, 420,459.11 and 168,714.65

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Solution

The fourth proportional to 304,680.71, 420,459.11 and 168,714.65 is: 232,826.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,680.71 : 420,459.11 = 168,714.65 : x
  2. Step 2: Convert to fraction form
    304,680.71/420,459.11 = 168,714.65/x
  3. Step 3: Cross multiply
    304,680.71x = 420,459.11 × 168,714.65
  4. Step 4: Simplify right side
    304,680.71x = 70,937,613,055.90
  5. Step 5: Solve for x
    x = 70,937,613,055.90/304,680.71
  6. Step 6: Final answer
    x = 232,826.07

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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.