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Finding the Fourth Proportional to 457,006.53, 630,661.30 and 253,053.07

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Solution

The fourth proportional to 457,006.53, 630,661.30 and 253,053.07 is: 349,208.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,006.53 : 630,661.30 = 253,053.07 : x
  2. Step 2: Convert to fraction form
    457,006.53/630,661.30 = 253,053.07/x
  3. Step 3: Cross multiply
    457,006.53x = 630,661.30 × 253,053.07
  4. Step 4: Simplify right side
    457,006.53x = 159,590,778,095.19
  5. Step 5: Solve for x
    x = 159,590,778,095.19/457,006.53
  6. Step 6: Final answer
    x = 349,208.97

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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.