Home / 343,966.65-515,423.94-144,178.12

Finding the Fourth Proportional to 343,966.65, 515,423.94 and 144,178.12

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Solution

The fourth proportional to 343,966.65, 515,423.94 and 144,178.12 is: 216,046.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,966.65 : 515,423.94 = 144,178.12 : x
  2. Step 2: Convert to fraction form
    343,966.65/515,423.94 = 144,178.12/x
  3. Step 3: Cross multiply
    343,966.65x = 515,423.94 × 144,178.12
  4. Step 4: Simplify right side
    343,966.65x = 74,312,854,672.19
  5. Step 5: Solve for x
    x = 74,312,854,672.19/343,966.65
  6. Step 6: Final answer
    x = 216,046.69

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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.