Home / 436,421.40-654,632.10-140,933.40

Finding the Fourth Proportional to 436,421.40, 654,632.10 and 140,933.40

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Solution

The fourth proportional to 436,421.40, 654,632.10 and 140,933.40 is: 211,400.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,421.40 : 654,632.10 = 140,933.40 : x
  2. Step 2: Convert to fraction form
    436,421.40/654,632.10 = 140,933.40/x
  3. Step 3: Cross multiply
    436,421.40x = 654,632.10 × 140,933.40
  4. Step 4: Simplify right side
    436,421.40x = 92,259,527,602.14
  5. Step 5: Solve for x
    x = 92,259,527,602.14/436,421.40
  6. Step 6: Final answer
    x = 211,400.10

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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.