Home / 423,975.40-635,890.20-157,598.80

Finding the Fourth Proportional to 423,975.40, 635,890.20 and 157,598.80

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Solution

The fourth proportional to 423,975.40, 635,890.20 and 157,598.80 is: 236,371.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,975.40 : 635,890.20 = 157,598.80 : x
  2. Step 2: Convert to fraction form
    423,975.40/635,890.20 = 157,598.80/x
  3. Step 3: Cross multiply
    423,975.40x = 635,890.20 × 157,598.80
  4. Step 4: Simplify right side
    423,975.40x = 100,215,532,451.76
  5. Step 5: Solve for x
    x = 100,215,532,451.76/423,975.40
  6. Step 6: Final answer
    x = 236,371.10

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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.