Home / 306,955.02-423,617.40-186,107.88

Finding the Fourth Proportional to 306,955.02, 423,617.40 and 186,107.88

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Solution

The fourth proportional to 306,955.02, 423,617.40 and 186,107.88 is: 256,840.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,955.02 : 423,617.40 = 186,107.88 : x
  2. Step 2: Convert to fraction form
    306,955.02/423,617.40 = 186,107.88/x
  3. Step 3: Cross multiply
    306,955.02x = 423,617.40 × 186,107.88
  4. Step 4: Simplify right side
    306,955.02x = 78,838,536,245.11
  5. Step 5: Solve for x
    x = 78,838,536,245.11/306,955.02
  6. Step 6: Final answer
    x = 256,840.68

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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.