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Finding the Fourth Proportional to 217,280.40, 294,378.30 and 217,280.40

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Solution

The fourth proportional to 217,280.40, 294,378.30 and 217,280.40 is: 294,378.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,280.40 : 294,378.30 = 217,280.40 : x
  2. Step 2: Convert to fraction form
    217,280.40/294,378.30 = 217,280.40/x
  3. Step 3: Cross multiply
    217,280.40x = 294,378.30 × 217,280.40
  4. Step 4: Simplify right side
    217,280.40x = 63,962,634,775.32
  5. Step 5: Solve for x
    x = 63,962,634,775.32/217,280.40
  6. Step 6: Final answer
    x = 294,378.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.