Home / 312,225.24-430,872.12-168,985.56

Finding the Fourth Proportional to 312,225.24, 430,872.12 and 168,985.56

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Solution

The fourth proportional to 312,225.24, 430,872.12 and 168,985.56 is: 233,200.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,225.24 : 430,872.12 = 168,985.56 : x
  2. Step 2: Convert to fraction form
    312,225.24/430,872.12 = 168,985.56/x
  3. Step 3: Cross multiply
    312,225.24x = 430,872.12 × 168,985.56
  4. Step 4: Simplify right side
    312,225.24x = 72,811,166,486.59
  5. Step 5: Solve for x
    x = 72,811,166,486.59/312,225.24
  6. Step 6: Final answer
    x = 233,200.77

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1.5x scale

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.