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Finding the Fourth Proportional to 423,452.36, 634,695.36 and 170,570.90

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Solution

The fourth proportional to 423,452.36, 634,695.36 and 170,570.90 is: 255,661.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,452.36 : 634,695.36 = 170,570.90 : x
  2. Step 2: Convert to fraction form
    423,452.36/634,695.36 = 170,570.90/x
  3. Step 3: Cross multiply
    423,452.36x = 634,695.36 × 170,570.90
  4. Step 4: Simplify right side
    423,452.36x = 108,260,558,781.02
  5. Step 5: Solve for x
    x = 108,260,558,781.02/423,452.36
  6. Step 6: Final answer
    x = 255,661.72

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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.