Home / 315,133.14-434,889.64-171,898.30

Finding the Fourth Proportional to 315,133.14, 434,889.64 and 171,898.30

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Solution

The fourth proportional to 315,133.14, 434,889.64 and 171,898.30 is: 237,222.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,133.14 : 434,889.64 = 171,898.30 : x
  2. Step 2: Convert to fraction form
    315,133.14/434,889.64 = 171,898.30/x
  3. Step 3: Cross multiply
    315,133.14x = 434,889.64 × 171,898.30
  4. Step 4: Simplify right side
    315,133.14x = 74,756,789,803.61
  5. Step 5: Solve for x
    x = 74,756,789,803.61/315,133.14
  6. Step 6: Final answer
    x = 237,222.88

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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.