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Finding the Fourth Proportional to 340,482.36, 510,717.78 and 87,762.36

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Solution

The fourth proportional to 340,482.36, 510,717.78 and 87,762.36 is: 131,642.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,482.36 : 510,717.78 = 87,762.36 : x
  2. Step 2: Convert to fraction form
    340,482.36/510,717.78 = 87,762.36/x
  3. Step 3: Cross multiply
    340,482.36x = 510,717.78 × 87,762.36
  4. Step 4: Simplify right side
    340,482.36x = 44,821,797,666.76
  5. Step 5: Solve for x
    x = 44,821,797,666.76/340,482.36
  6. Step 6: Final answer
    x = 131,642.06

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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.