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Finding the Fourth Proportional to 457,053.08, 630,725.45 and 253,099.62

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Solution

The fourth proportional to 457,053.08, 630,725.45 and 253,099.62 is: 349,273.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,053.08 : 630,725.45 = 253,099.62 : x
  2. Step 2: Convert to fraction form
    457,053.08/630,725.45 = 253,099.62/x
  3. Step 3: Cross multiply
    457,053.08x = 630,725.45 × 253,099.62
  4. Step 4: Simplify right side
    457,053.08x = 159,636,370,453.83
  5. Step 5: Solve for x
    x = 159,636,370,453.83/457,053.08
  6. Step 6: Final answer
    x = 349,273.16

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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.