Home / 145,560.20-218,340.30-144,638.60

Finding the Fourth Proportional to 145,560.20, 218,340.30 and 144,638.60

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Solution

The fourth proportional to 145,560.20, 218,340.30 and 144,638.60 is: 216,957.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,560.20 : 218,340.30 = 144,638.60 : x
  2. Step 2: Convert to fraction form
    145,560.20/218,340.30 = 144,638.60/x
  3. Step 3: Cross multiply
    145,560.20x = 218,340.30 × 144,638.60
  4. Step 4: Simplify right side
    145,560.20x = 31,580,435,315.58
  5. Step 5: Solve for x
    x = 31,580,435,315.58/145,560.20
  6. Step 6: Final answer
    x = 216,957.90

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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.