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Finding the Fourth Proportional to 240,012.40, 360,018.60 and 193,356.40

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Solution

The fourth proportional to 240,012.40, 360,018.60 and 193,356.40 is: 290,034.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,012.40 : 360,018.60 = 193,356.40 : x
  2. Step 2: Convert to fraction form
    240,012.40/360,018.60 = 193,356.40/x
  3. Step 3: Cross multiply
    240,012.40x = 360,018.60 × 193,356.40
  4. Step 4: Simplify right side
    240,012.40x = 69,611,900,429.04
  5. Step 5: Solve for x
    x = 69,611,900,429.04/240,012.40
  6. Step 6: Final answer
    x = 290,034.60

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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.