Home / 311,561.19-429,942.02-175,623.35

Finding the Fourth Proportional to 311,561.19, 429,942.02 and 175,623.35

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Solution

The fourth proportional to 311,561.19, 429,942.02 and 175,623.35 is: 242,353.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,561.19 : 429,942.02 = 175,623.35 : x
  2. Step 2: Convert to fraction form
    311,561.19/429,942.02 = 175,623.35/x
  3. Step 3: Cross multiply
    311,561.19x = 429,942.02 × 175,623.35
  4. Step 4: Simplify right side
    311,561.19x = 75,507,854,830.34
  5. Step 5: Solve for x
    x = 75,507,854,830.34/311,561.19
  6. Step 6: Final answer
    x = 242,353.21

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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.