Home / 311,526.15-429,907.77-175,562.21

Finding the Fourth Proportional to 311,526.15, 429,907.77 and 175,562.21

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Solution

The fourth proportional to 311,526.15, 429,907.77 and 175,562.21 is: 242,276.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,526.15 : 429,907.77 = 175,562.21 : x
  2. Step 2: Convert to fraction form
    311,526.15/429,907.77 = 175,562.21/x
  3. Step 3: Cross multiply
    311,526.15x = 429,907.77 × 175,562.21
  4. Step 4: Simplify right side
    311,526.15x = 75,475,556,047.83
  5. Step 5: Solve for x
    x = 75,475,556,047.83/311,526.15
  6. Step 6: Final answer
    x = 242,276.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.