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Finding the Fourth Proportional to 457,025.02, 630,686.78 and 253,071.58

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Solution

The fourth proportional to 457,025.02, 630,686.78 and 253,071.58 is: 349,234.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,025.02 : 630,686.78 = 253,071.58 : x
  2. Step 2: Convert to fraction form
    457,025.02/630,686.78 = 253,071.58/x
  3. Step 3: Cross multiply
    457,025.02x = 630,686.78 × 253,071.58
  4. Step 4: Simplify right side
    457,025.02x = 159,608,899,899.71
  5. Step 5: Solve for x
    x = 159,608,899,899.71/457,025.02
  6. Step 6: Final answer
    x = 349,234.49

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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.