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Finding the Fourth Proportional to 240,209.40, 360,314.10 and 122,111.40

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Solution

The fourth proportional to 240,209.40, 360,314.10 and 122,111.40 is: 183,167.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,209.40 : 360,314.10 = 122,111.40 : x
  2. Step 2: Convert to fraction form
    240,209.40/360,314.10 = 122,111.40/x
  3. Step 3: Cross multiply
    240,209.40x = 360,314.10 × 122,111.40
  4. Step 4: Simplify right side
    240,209.40x = 43,998,459,190.74
  5. Step 5: Solve for x
    x = 43,998,459,190.74/240,209.40
  6. Step 6: Final answer
    x = 183,167.10

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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.