Home / 291,220.20-436,247.10-166,415.40

Finding the Fourth Proportional to 291,220.20, 436,247.10 and 166,415.40

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Solution

The fourth proportional to 291,220.20, 436,247.10 and 166,415.40 is: 249,289.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,220.20 : 436,247.10 = 166,415.40 : x
  2. Step 2: Convert to fraction form
    291,220.20/436,247.10 = 166,415.40/x
  3. Step 3: Cross multiply
    291,220.20x = 436,247.10 × 166,415.40
  4. Step 4: Simplify right side
    291,220.20x = 72,598,235,645.34
  5. Step 5: Solve for x
    x = 72,598,235,645.34/291,220.20
  6. Step 6: Final answer
    x = 249,289.84

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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.