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Finding the Fourth Proportional to 252,808.93, 348,878.13 and 139,631.68

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Solution

The fourth proportional to 252,808.93, 348,878.13 and 139,631.68 is: 192,692.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,808.93 : 348,878.13 = 139,631.68 : x
  2. Step 2: Convert to fraction form
    252,808.93/348,878.13 = 139,631.68/x
  3. Step 3: Cross multiply
    252,808.93x = 348,878.13 × 139,631.68
  4. Step 4: Simplify right side
    252,808.93x = 48,714,439,407.16
  5. Step 5: Solve for x
    x = 48,714,439,407.16/252,808.93
  6. Step 6: Final answer
    x = 192,692.72

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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.