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Finding the Fourth Proportional to 358,868.40, 538,302.60 and 109,550.40

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Solution

The fourth proportional to 358,868.40, 538,302.60 and 109,550.40 is: 164,325.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,868.40 : 538,302.60 = 109,550.40 : x
  2. Step 2: Convert to fraction form
    358,868.40/538,302.60 = 109,550.40/x
  3. Step 3: Cross multiply
    358,868.40x = 538,302.60 × 109,550.40
  4. Step 4: Simplify right side
    358,868.40x = 58,971,265,151.04
  5. Step 5: Solve for x
    x = 58,971,265,151.04/358,868.40
  6. Step 6: Final answer
    x = 164,325.60

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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.