Home / 305,447.31-457,557.69-145,677.87

Finding the Fourth Proportional to 305,447.31, 457,557.69 and 145,677.87

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Solution

The fourth proportional to 305,447.31, 457,557.69 and 145,677.87 is: 218,224.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,447.31 : 457,557.69 = 145,677.87 : x
  2. Step 2: Convert to fraction form
    305,447.31/457,557.69 = 145,677.87/x
  3. Step 3: Cross multiply
    305,447.31x = 457,557.69 × 145,677.87
  4. Step 4: Simplify right side
    305,447.31x = 66,656,029,681.32
  5. Step 5: Solve for x
    x = 66,656,029,681.32/305,447.31
  6. Step 6: Final answer
    x = 218,224.31

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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.