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Finding the Fourth Proportional to 319,779.94, 479,631.70 and 248,773.46

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Solution

The fourth proportional to 319,779.94, 479,631.70 and 248,773.46 is: 373,130.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,779.94 : 479,631.70 = 248,773.46 : x
  2. Step 2: Convert to fraction form
    319,779.94/479,631.70 = 248,773.46/x
  3. Step 3: Cross multiply
    319,779.94x = 479,631.70 × 248,773.46
  4. Step 4: Simplify right side
    319,779.94x = 119,319,637,534.68
  5. Step 5: Solve for x
    x = 119,319,637,534.68/319,779.94
  6. Step 6: Final answer
    x = 373,130.46

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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.