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Finding the Fourth Proportional to 305,587.61, 458,383.70 and 115,996.87

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Solution

The fourth proportional to 305,587.61, 458,383.70 and 115,996.87 is: 173,996.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,587.61 : 458,383.70 = 115,996.87 : x
  2. Step 2: Convert to fraction form
    305,587.61/458,383.70 = 115,996.87/x
  3. Step 3: Cross multiply
    305,587.61x = 458,383.70 × 115,996.87
  4. Step 4: Simplify right side
    305,587.61x = 53,171,074,459.02
  5. Step 5: Solve for x
    x = 53,171,074,459.02/305,587.61
  6. Step 6: Final answer
    x = 173,996.17

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1.5x scale

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.