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Finding the Fourth Proportional to 252,498.80, 348,455.58 and 139,328.84

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Solution

The fourth proportional to 252,498.80, 348,455.58 and 139,328.84 is: 192,277.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,498.80 : 348,455.58 = 139,328.84 : x
  2. Step 2: Convert to fraction form
    252,498.80/348,455.58 = 139,328.84/x
  3. Step 3: Cross multiply
    252,498.80x = 348,455.58 × 139,328.84
  4. Step 4: Simplify right side
    252,498.80x = 48,549,911,752.93
  5. Step 5: Solve for x
    x = 48,549,911,752.93/252,498.80
  6. Step 6: Final answer
    x = 192,277.79

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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.