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Finding the Fourth Proportional to 453,700.42, 680,498.79 and 121,302.34

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Solution

The fourth proportional to 453,700.42, 680,498.79 and 121,302.34 is: 181,939.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,700.42 : 680,498.79 = 121,302.34 : x
  2. Step 2: Convert to fraction form
    453,700.42/680,498.79 = 121,302.34/x
  3. Step 3: Cross multiply
    453,700.42x = 680,498.79 × 121,302.34
  4. Step 4: Simplify right side
    453,700.42x = 82,546,095,594.17
  5. Step 5: Solve for x
    x = 82,546,095,594.17/453,700.42
  6. Step 6: Final answer
    x = 181,939.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.