Home / 340,278.32-510,417.45-103,621.02

Finding the Fourth Proportional to 340,278.32, 510,417.45 and 103,621.02

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Solution

The fourth proportional to 340,278.32, 510,417.45 and 103,621.02 is: 155,431.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,278.32 : 510,417.45 = 103,621.02 : x
  2. Step 2: Convert to fraction form
    340,278.32/510,417.45 = 103,621.02/x
  3. Step 3: Cross multiply
    340,278.32x = 510,417.45 × 103,621.02
  4. Step 4: Simplify right side
    340,278.32x = 52,889,976,794.80
  5. Step 5: Solve for x
    x = 52,889,976,794.80/340,278.32
  6. Step 6: Final answer
    x = 155,431.52

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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.