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Finding the Fourth Proportional to 252,686.94, 348,712.47 and 139,502.94

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Solution

The fourth proportional to 252,686.94, 348,712.47 and 139,502.94 is: 192,516.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,686.94 : 348,712.47 = 139,502.94 : x
  2. Step 2: Convert to fraction form
    252,686.94/348,712.47 = 139,502.94/x
  3. Step 3: Cross multiply
    252,686.94x = 348,712.47 × 139,502.94
  4. Step 4: Simplify right side
    252,686.94x = 48,646,414,779.66
  5. Step 5: Solve for x
    x = 48,646,414,779.66/252,686.94
  6. Step 6: Final answer
    x = 192,516.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.