Home / 543,431.20-815,182.80-144,066.40

Finding the Fourth Proportional to 543,431.20, 815,182.80 and 144,066.40

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Solution

The fourth proportional to 543,431.20, 815,182.80 and 144,066.40 is: 216,109.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,431.20 : 815,182.80 = 144,066.40 : x
  2. Step 2: Convert to fraction form
    543,431.20/815,182.80 = 144,066.40/x
  3. Step 3: Cross multiply
    543,431.20x = 815,182.80 × 144,066.40
  4. Step 4: Simplify right side
    543,431.20x = 117,440,451,337.92
  5. Step 5: Solve for x
    x = 117,440,451,337.92/543,431.20
  6. Step 6: Final answer
    x = 216,109.14

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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.