Home / 340,242.72-510,437.88-103,579.28

Finding the Fourth Proportional to 340,242.72, 510,437.88 and 103,579.28

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Solution

The fourth proportional to 340,242.72, 510,437.88 and 103,579.28 is: 155,391.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,242.72 : 510,437.88 = 103,579.28 : x
  2. Step 2: Convert to fraction form
    340,242.72/510,437.88 = 103,579.28/x
  3. Step 3: Cross multiply
    340,242.72x = 510,437.88 × 103,579.28
  4. Step 4: Simplify right side
    340,242.72x = 52,870,788,095.13
  5. Step 5: Solve for x
    x = 52,870,788,095.13/340,242.72
  6. Step 6: Final answer
    x = 155,391.39

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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.