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Finding the Fourth Proportional to 340,530.48, 510,794.10 and 103,874.40

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Solution

The fourth proportional to 340,530.48, 510,794.10 and 103,874.40 is: 155,811.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,530.48 : 510,794.10 = 103,874.40 : x
  2. Step 2: Convert to fraction form
    340,530.48/510,794.10 = 103,874.40/x
  3. Step 3: Cross multiply
    340,530.48x = 510,794.10 × 103,874.40
  4. Step 4: Simplify right side
    340,530.48x = 53,058,430,661.04
  5. Step 5: Solve for x
    x = 53,058,430,661.04/340,530.48
  6. Step 6: Final answer
    x = 155,811.11

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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.