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Finding the Fourth Proportional to 457,011.83, 630,668.61 and 253,058.36

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Solution

The fourth proportional to 457,011.83, 630,668.61 and 253,058.36 is: 349,216.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,011.83 : 630,668.61 = 253,058.36 : x
  2. Step 2: Convert to fraction form
    457,011.83/630,668.61 = 253,058.36/x
  3. Step 3: Cross multiply
    457,011.83x = 630,668.61 × 253,058.36
  4. Step 4: Simplify right side
    457,011.83x = 159,595,965,726.75
  5. Step 5: Solve for x
    x = 159,595,965,726.75/457,011.83
  6. Step 6: Final answer
    x = 349,216.27

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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.