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Finding the Fourth Proportional to 252,479.63, 348,421.70 and 139,302.38

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Solution

The fourth proportional to 252,479.63, 348,421.70 and 139,302.38 is: 192,237.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,479.63 : 348,421.70 = 139,302.38 : x
  2. Step 2: Convert to fraction form
    252,479.63/348,421.70 = 139,302.38/x
  3. Step 3: Cross multiply
    252,479.63x = 348,421.70 × 139,302.38
  4. Step 4: Simplify right side
    252,479.63x = 48,535,973,272.96
  5. Step 5: Solve for x
    x = 48,535,973,272.96/252,479.63
  6. Step 6: Final answer
    x = 192,237.18

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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.