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Finding the Fourth Proportional to 358,909.22, 538,457.29 and 134,287.22

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Solution

The fourth proportional to 358,909.22, 538,457.29 and 134,287.22 is: 201,465.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,909.22 : 538,457.29 = 134,287.22 : x
  2. Step 2: Convert to fraction form
    358,909.22/538,457.29 = 134,287.22/x
  3. Step 3: Cross multiply
    358,909.22x = 538,457.29 × 134,287.22
  4. Step 4: Simplify right side
    358,909.22x = 72,307,933,573.26
  5. Step 5: Solve for x
    x = 72,307,933,573.26/358,909.22
  6. Step 6: Final answer
    x = 201,465.80

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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.