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Finding the Fourth Proportional to 245,809.76, 368,714.64 and 140,554.90

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Solution

The fourth proportional to 245,809.76, 368,714.64 and 140,554.90 is: 210,832.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,809.76 : 368,714.64 = 140,554.90 : x
  2. Step 2: Convert to fraction form
    245,809.76/368,714.64 = 140,554.90/x
  3. Step 3: Cross multiply
    245,809.76x = 368,714.64 × 140,554.90
  4. Step 4: Simplify right side
    245,809.76x = 51,824,649,353.74
  5. Step 5: Solve for x
    x = 51,824,649,353.74/245,809.76
  6. Step 6: Final answer
    x = 210,832.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.