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Finding the Fourth Proportional to 240,454.20, 360,206.10 and 210,905.40

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Solution

The fourth proportional to 240,454.20, 360,206.10 and 210,905.40 is: 315,941.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,454.20 : 360,206.10 = 210,905.40 : x
  2. Step 2: Convert to fraction form
    240,454.20/360,206.10 = 210,905.40/x
  3. Step 3: Cross multiply
    240,454.20x = 360,206.10 × 210,905.40
  4. Step 4: Simplify right side
    240,454.20x = 75,969,411,602.94
  5. Step 5: Solve for x
    x = 75,969,411,602.94/240,454.20
  6. Step 6: Final answer
    x = 315,941.30

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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.