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Finding the Fourth Proportional to 240,323.60, 360,485.40 and 219,328.40

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Solution

The fourth proportional to 240,323.60, 360,485.40 and 219,328.40 is: 328,992.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,323.60 : 360,485.40 = 219,328.40 : x
  2. Step 2: Convert to fraction form
    240,323.60/360,485.40 = 219,328.40/x
  3. Step 3: Cross multiply
    240,323.60x = 360,485.40 × 219,328.40
  4. Step 4: Simplify right side
    240,323.60x = 79,064,686,005.36
  5. Step 5: Solve for x
    x = 79,064,686,005.36/240,323.60
  6. Step 6: Final answer
    x = 328,992.60

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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.