Home / 279,669.72-385,942.25-152,345.32

Finding the Fourth Proportional to 279,669.72, 385,942.25 and 152,345.32

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Solution

The fourth proportional to 279,669.72, 385,942.25 and 152,345.32 is: 210,235.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,669.72 : 385,942.25 = 152,345.32 : x
  2. Step 2: Convert to fraction form
    279,669.72/385,942.25 = 152,345.32/x
  3. Step 3: Cross multiply
    279,669.72x = 385,942.25 × 152,345.32
  4. Step 4: Simplify right side
    279,669.72x = 58,796,495,577.77
  5. Step 5: Solve for x
    x = 58,796,495,577.77/279,669.72
  6. Step 6: Final answer
    x = 210,235.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.