Home / 385,423.90-531,821.53-242,081.84

Finding the Fourth Proportional to 385,423.90, 531,821.53 and 242,081.84

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Solution

The fourth proportional to 385,423.90, 531,821.53 and 242,081.84 is: 334,033.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,423.90 : 531,821.53 = 242,081.84 : x
  2. Step 2: Convert to fraction form
    385,423.90/531,821.53 = 242,081.84/x
  3. Step 3: Cross multiply
    385,423.90x = 531,821.53 × 242,081.84
  4. Step 4: Simplify right side
    385,423.90x = 128,744,336,166.17
  5. Step 5: Solve for x
    x = 128,744,336,166.17/385,423.90
  6. Step 6: Final answer
    x = 334,033.09

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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.