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Finding the Fourth Proportional to 291,777.93, 437,666.90 and 225,315

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Solution

The fourth proportional to 291,777.93, 437,666.90 and 225,315 is: 337,972.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,777.93 : 437,666.90 = 225,315 : x
  2. Step 2: Convert to fraction form
    291,777.93/437,666.90 = 225,315/x
  3. Step 3: Cross multiply
    291,777.93x = 437,666.90 × 225,315
  4. Step 4: Simplify right side
    291,777.93x = 98,612,917,573.50
  5. Step 5: Solve for x
    x = 98,612,917,573.50/291,777.93
  6. Step 6: Final answer
    x = 337,972.50

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1.5x scale

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.