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Finding the Fourth Proportional to 240,367.20, 360,075.60 and 210,818.40

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Solution

The fourth proportional to 240,367.20, 360,075.60 and 210,818.40 is: 315,810.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,367.20 : 360,075.60 = 210,818.40 : x
  2. Step 2: Convert to fraction form
    240,367.20/360,075.60 = 210,818.40/x
  3. Step 3: Cross multiply
    240,367.20x = 360,075.60 × 210,818.40
  4. Step 4: Simplify right side
    240,367.20x = 75,910,561,871.04
  5. Step 5: Solve for x
    x = 75,910,561,871.04/240,367.20
  6. Step 6: Final answer
    x = 315,810.82

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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.