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Finding the Fourth Proportional to 292,599, 438,898.68 and 70,983

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Solution

The fourth proportional to 292,599, 438,898.68 and 70,983 is: 106,474.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,599 : 438,898.68 = 70,983 : x
  2. Step 2: Convert to fraction form
    292,599/438,898.68 = 70,983/x
  3. Step 3: Cross multiply
    292,599x = 438,898.68 × 70,983
  4. Step 4: Simplify right side
    292,599x = 31,154,345,002.44
  5. Step 5: Solve for x
    x = 31,154,345,002.44/292,599
  6. Step 6: Final answer
    x = 106,474.54

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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.