Home / 340,388.42-469,732.02-187,423.40

Finding the Fourth Proportional to 340,388.42, 469,732.02 and 187,423.40

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Solution

The fourth proportional to 340,388.42, 469,732.02 and 187,423.40 is: 258,642.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,388.42 : 469,732.02 = 187,423.40 : x
  2. Step 2: Convert to fraction form
    340,388.42/469,732.02 = 187,423.40/x
  3. Step 3: Cross multiply
    340,388.42x = 469,732.02 × 187,423.40
  4. Step 4: Simplify right side
    340,388.42x = 88,038,772,277.27
  5. Step 5: Solve for x
    x = 88,038,772,277.27/340,388.42
  6. Step 6: Final answer
    x = 258,642.09

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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.