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Finding the Fourth Proportional to 429,502.01, 643,968.66 and 204,897.11

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Solution

The fourth proportional to 429,502.01, 643,968.66 and 204,897.11 is: 307,210.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,502.01 : 643,968.66 = 204,897.11 : x
  2. Step 2: Convert to fraction form
    429,502.01/643,968.66 = 204,897.11/x
  3. Step 3: Cross multiply
    429,502.01x = 643,968.66 × 204,897.11
  4. Step 4: Simplify right side
    429,502.01x = 131,947,317,364.57
  5. Step 5: Solve for x
    x = 131,947,317,364.57/429,502.01
  6. Step 6: Final answer
    x = 307,210.01

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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.