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Finding the Fourth Proportional to 458,667.04, 688,165.68 and 205,927.84

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Solution

The fourth proportional to 458,667.04, 688,165.68 and 205,927.84 is: 308,965.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,667.04 : 688,165.68 = 205,927.84 : x
  2. Step 2: Convert to fraction form
    458,667.04/688,165.68 = 205,927.84/x
  3. Step 3: Cross multiply
    458,667.04x = 688,165.68 × 205,927.84
  4. Step 4: Simplify right side
    458,667.04x = 141,712,472,044.53
  5. Step 5: Solve for x
    x = 141,712,472,044.53/458,667.04
  6. Step 6: Final answer
    x = 308,965.89

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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.