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Finding the Fourth Proportional to 245,714.40, 368,571.60 and 87,955.20

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Solution

The fourth proportional to 245,714.40, 368,571.60 and 87,955.20 is: 131,932.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,714.40 : 368,571.60 = 87,955.20 : x
  2. Step 2: Convert to fraction form
    245,714.40/368,571.60 = 87,955.20/x
  3. Step 3: Cross multiply
    245,714.40x = 368,571.60 × 87,955.20
  4. Step 4: Simplify right side
    245,714.40x = 32,417,788,792.32
  5. Step 5: Solve for x
    x = 32,417,788,792.32/245,714.40
  6. Step 6: Final answer
    x = 131,932.80

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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.