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Finding the Fourth Proportional to 247,284.90, 370,927.35 and 142,308.90

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Solution

The fourth proportional to 247,284.90, 370,927.35 and 142,308.90 is: 213,463.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,284.90 : 370,927.35 = 142,308.90 : x
  2. Step 2: Convert to fraction form
    247,284.90/370,927.35 = 142,308.90/x
  3. Step 3: Cross multiply
    247,284.90x = 370,927.35 × 142,308.90
  4. Step 4: Simplify right side
    247,284.90x = 52,786,263,158.42
  5. Step 5: Solve for x
    x = 52,786,263,158.42/247,284.90
  6. Step 6: Final answer
    x = 213,463.35

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Similar ratio
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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.