Home / 289,218.10-432,952.35-257,725.30

Finding the Fourth Proportional to 289,218.10, 432,952.35 and 257,725.30

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Solution

The fourth proportional to 289,218.10, 432,952.35 and 257,725.30 is: 385,808.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,218.10 : 432,952.35 = 257,725.30 : x
  2. Step 2: Convert to fraction form
    289,218.10/432,952.35 = 257,725.30/x
  3. Step 3: Cross multiply
    289,218.10x = 432,952.35 × 257,725.30
  4. Step 4: Simplify right side
    289,218.10x = 111,582,774,289.46
  5. Step 5: Solve for x
    x = 111,582,774,289.46/289,218.10
  6. Step 6: Final answer
    x = 385,808.41

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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.