Home / 340,278.30-510,417.44-103,621

Finding the Fourth Proportional to 340,278.30, 510,417.44 and 103,621

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Solution

The fourth proportional to 340,278.30, 510,417.44 and 103,621 is: 155,431.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,278.30 : 510,417.44 = 103,621 : x
  2. Step 2: Convert to fraction form
    340,278.30/510,417.44 = 103,621/x
  3. Step 3: Cross multiply
    340,278.30x = 510,417.44 × 103,621
  4. Step 4: Simplify right side
    340,278.30x = 52,889,965,550.24
  5. Step 5: Solve for x
    x = 52,889,965,550.24/340,278.30
  6. Step 6: Final answer
    x = 155,431.50

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1.5x scale

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.