Home / 260,223.10-390,334.65-155,247.10

Finding the Fourth Proportional to 260,223.10, 390,334.65 and 155,247.10

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Solution

The fourth proportional to 260,223.10, 390,334.65 and 155,247.10 is: 232,870.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,223.10 : 390,334.65 = 155,247.10 : x
  2. Step 2: Convert to fraction form
    260,223.10/390,334.65 = 155,247.10/x
  3. Step 3: Cross multiply
    260,223.10x = 390,334.65 × 155,247.10
  4. Step 4: Simplify right side
    260,223.10x = 60,598,322,442.02
  5. Step 5: Solve for x
    x = 60,598,322,442.02/260,223.10
  6. Step 6: Final answer
    x = 232,870.65

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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.