Home / 225,915.18-312,087.42-180,533.76

Finding the Fourth Proportional to 225,915.18, 312,087.42 and 180,533.76

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Solution

The fourth proportional to 225,915.18, 312,087.42 and 180,533.76 is: 249,395.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,915.18 : 312,087.42 = 180,533.76 : x
  2. Step 2: Convert to fraction form
    225,915.18/312,087.42 = 180,533.76/x
  3. Step 3: Cross multiply
    225,915.18x = 312,087.42 × 180,533.76
  4. Step 4: Simplify right side
    225,915.18x = 56,342,315,381.30
  5. Step 5: Solve for x
    x = 56,342,315,381.30/225,915.18
  6. Step 6: Final answer
    x = 249,395.88

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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.