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Finding the Fourth Proportional to 292,508.38, 438,762.57 and 70,892.38

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Solution

The fourth proportional to 292,508.38, 438,762.57 and 70,892.38 is: 106,338.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,508.38 : 438,762.57 = 70,892.38 : x
  2. Step 2: Convert to fraction form
    292,508.38/438,762.57 = 70,892.38/x
  3. Step 3: Cross multiply
    292,508.38x = 438,762.57 × 70,892.38
  4. Step 4: Simplify right side
    292,508.38x = 31,104,920,648.40
  5. Step 5: Solve for x
    x = 31,104,920,648.40/292,508.38
  6. Step 6: Final answer
    x = 106,338.56

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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.