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Finding the Fourth Proportional to 495,959.40, 743,939.10 and 163,492.20

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Solution

The fourth proportional to 495,959.40, 743,939.10 and 163,492.20 is: 245,238.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,959.40 : 743,939.10 = 163,492.20 : x
  2. Step 2: Convert to fraction form
    495,959.40/743,939.10 = 163,492.20/x
  3. Step 3: Cross multiply
    495,959.40x = 743,939.10 × 163,492.20
  4. Step 4: Simplify right side
    495,959.40x = 121,628,240,125.02
  5. Step 5: Solve for x
    x = 121,628,240,125.02/495,959.40
  6. Step 6: Final answer
    x = 245,238.30

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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.