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Finding the Fourth Proportional to 429,760.29, 644,331.66 and 201,927.45

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Solution

The fourth proportional to 429,760.29, 644,331.66 and 201,927.45 is: 302,746.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,760.29 : 644,331.66 = 201,927.45 : x
  2. Step 2: Convert to fraction form
    429,760.29/644,331.66 = 201,927.45/x
  3. Step 3: Cross multiply
    429,760.29x = 644,331.66 × 201,927.45
  4. Step 4: Simplify right side
    429,760.29x = 130,108,249,058.07
  5. Step 5: Solve for x
    x = 130,108,249,058.07/429,760.29
  6. Step 6: Final answer
    x = 302,746.09

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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.