Home / 218,966.40-328,579.20-144,302.40

Finding the Fourth Proportional to 218,966.40, 328,579.20 and 144,302.40

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Solution

The fourth proportional to 218,966.40, 328,579.20 and 144,302.40 is: 216,539.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,966.40 : 328,579.20 = 144,302.40 : x
  2. Step 2: Convert to fraction form
    218,966.40/328,579.20 = 144,302.40/x
  3. Step 3: Cross multiply
    218,966.40x = 328,579.20 × 144,302.40
  4. Step 4: Simplify right side
    218,966.40x = 47,414,767,150.08
  5. Step 5: Solve for x
    x = 47,414,767,150.08/218,966.40
  6. Step 6: Final answer
    x = 216,539.01

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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.