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Finding the Fourth Proportional to 230,488, 345,790.32 and 64,276

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Solution

The fourth proportional to 230,488, 345,790.32 and 64,276 is: 96,430.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,488 : 345,790.32 = 64,276 : x
  2. Step 2: Convert to fraction form
    230,488/345,790.32 = 64,276/x
  3. Step 3: Cross multiply
    230,488x = 345,790.32 × 64,276
  4. Step 4: Simplify right side
    230,488x = 22,226,018,608.32
  5. Step 5: Solve for x
    x = 22,226,018,608.32/230,488
  6. Step 6: Final answer
    x = 96,430.26

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.