Home / 288,359.40-432,539.04-209,972.46

Finding the Fourth Proportional to 288,359.40, 432,539.04 and 209,972.46

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Solution

The fourth proportional to 288,359.40, 432,539.04 and 209,972.46 is: 314,958.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,359.40 : 432,539.04 = 209,972.46 : x
  2. Step 2: Convert to fraction form
    288,359.40/432,539.04 = 209,972.46/x
  3. Step 3: Cross multiply
    288,359.40x = 432,539.04 × 209,972.46
  4. Step 4: Simplify right side
    288,359.40x = 90,821,286,274.84
  5. Step 5: Solve for x
    x = 90,821,286,274.84/288,359.40
  6. Step 6: Final answer
    x = 314,958.65

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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.