Home / 331,379.10-497,068.65-305,718.30

Finding the Fourth Proportional to 331,379.10, 497,068.65 and 305,718.30

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Solution

The fourth proportional to 331,379.10, 497,068.65 and 305,718.30 is: 458,577.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,379.10 : 497,068.65 = 305,718.30 : x
  2. Step 2: Convert to fraction form
    331,379.10/497,068.65 = 305,718.30/x
  3. Step 3: Cross multiply
    331,379.10x = 497,068.65 × 305,718.30
  4. Step 4: Simplify right side
    331,379.10x = 151,962,982,661.30
  5. Step 5: Solve for x
    x = 151,962,982,661.30/331,379.10
  6. Step 6: Final answer
    x = 458,577.45

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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.