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Finding the Fourth Proportional to 286,385.60, 429,574.35 and 96,805.55

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Solution

The fourth proportional to 286,385.60, 429,574.35 and 96,805.55 is: 145,206.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,385.60 : 429,574.35 = 96,805.55 : x
  2. Step 2: Convert to fraction form
    286,385.60/429,574.35 = 96,805.55/x
  3. Step 3: Cross multiply
    286,385.60x = 429,574.35 × 96,805.55
  4. Step 4: Simplify right side
    286,385.60x = 41,585,181,217.64
  5. Step 5: Solve for x
    x = 41,585,181,217.64/286,385.60
  6. Step 6: Final answer
    x = 145,206.96

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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.