Home / 340,313.23-510,469.85-90,988.75

Finding the Fourth Proportional to 340,313.23, 510,469.85 and 90,988.75

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Solution

The fourth proportional to 340,313.23, 510,469.85 and 90,988.75 is: 136,483.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,313.23 : 510,469.85 = 90,988.75 : x
  2. Step 2: Convert to fraction form
    340,313.23/510,469.85 = 90,988.75/x
  3. Step 3: Cross multiply
    340,313.23x = 510,469.85 × 90,988.75
  4. Step 4: Simplify right side
    340,313.23x = 46,447,013,564.19
  5. Step 5: Solve for x
    x = 46,447,013,564.19/340,313.23
  6. Step 6: Final answer
    x = 136,483.13

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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.