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Finding the Fourth Proportional to 252,884.68, 348,987.90 and 139,714.72

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Solution

The fourth proportional to 252,884.68, 348,987.90 and 139,714.72 is: 192,810.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,884.68 : 348,987.90 = 139,714.72 : x
  2. Step 2: Convert to fraction form
    252,884.68/348,987.90 = 139,714.72/x
  3. Step 3: Cross multiply
    252,884.68x = 348,987.90 × 139,714.72
  4. Step 4: Simplify right side
    252,884.68x = 48,758,746,731.89
  5. Step 5: Solve for x
    x = 48,758,746,731.89/252,884.68
  6. Step 6: Final answer
    x = 192,810.20

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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.