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Finding the Fourth Proportional to 240,319.80, 360,479.70 and 201,245.40

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Solution

The fourth proportional to 240,319.80, 360,479.70 and 201,245.40 is: 301,868.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,319.80 : 360,479.70 = 201,245.40 : x
  2. Step 2: Convert to fraction form
    240,319.80/360,479.70 = 201,245.40/x
  3. Step 3: Cross multiply
    240,319.80x = 360,479.70 × 201,245.40
  4. Step 4: Simplify right side
    240,319.80x = 72,544,881,418.38
  5. Step 5: Solve for x
    x = 72,544,881,418.38/240,319.80
  6. Step 6: Final answer
    x = 301,868.10

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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.