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Finding the Fourth Proportional to 252,607.20, 348,597.72 and 139,429.68

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Solution

The fourth proportional to 252,607.20, 348,597.72 and 139,429.68 is: 192,412.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,607.20 : 348,597.72 = 139,429.68 : x
  2. Step 2: Convert to fraction form
    252,607.20/348,597.72 = 139,429.68/x
  3. Step 3: Cross multiply
    252,607.20x = 348,597.72 × 139,429.68
  4. Step 4: Simplify right side
    252,607.20x = 48,604,868,548.33
  5. Step 5: Solve for x
    x = 48,604,868,548.33/252,607.20
  6. Step 6: Final answer
    x = 192,412.84

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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.