Home / 439,669.10-659,384.99-155,322.21

Finding the Fourth Proportional to 439,669.10, 659,384.99 and 155,322.21

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Solution

The fourth proportional to 439,669.10, 659,384.99 and 155,322.21 is: 232,941.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,669.10 : 659,384.99 = 155,322.21 : x
  2. Step 2: Convert to fraction form
    439,669.10/659,384.99 = 155,322.21/x
  3. Step 3: Cross multiply
    439,669.10x = 659,384.99 × 155,322.21
  4. Step 4: Simplify right side
    439,669.10x = 102,417,134,275.93
  5. Step 5: Solve for x
    x = 102,417,134,275.93/439,669.10
  6. Step 6: Final answer
    x = 232,941.40

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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.