Home / 311,964.48-430,509.72-175,998.40

Finding the Fourth Proportional to 311,964.48, 430,509.72 and 175,998.40

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Solution

The fourth proportional to 311,964.48, 430,509.72 and 175,998.40 is: 242,877.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,964.48 : 430,509.72 = 175,998.40 : x
  2. Step 2: Convert to fraction form
    311,964.48/430,509.72 = 175,998.40/x
  3. Step 3: Cross multiply
    311,964.48x = 430,509.72 × 175,998.40
  4. Step 4: Simplify right side
    311,964.48x = 75,769,021,904.45
  5. Step 5: Solve for x
    x = 75,769,021,904.45/311,964.48
  6. Step 6: Final answer
    x = 242,877.08

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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.