Home / 314,728.38-434,325.20-171,488.42

Finding the Fourth Proportional to 314,728.38, 434,325.20 and 171,488.42

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Solution

The fourth proportional to 314,728.38, 434,325.20 and 171,488.42 is: 236,654.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,728.38 : 434,325.20 = 171,488.42 : x
  2. Step 2: Convert to fraction form
    314,728.38/434,325.20 = 171,488.42/x
  3. Step 3: Cross multiply
    314,728.38x = 434,325.20 × 171,488.42
  4. Step 4: Simplify right side
    314,728.38x = 74,481,742,314.18
  5. Step 5: Solve for x
    x = 74,481,742,314.18/314,728.38
  6. Step 6: Final answer
    x = 236,654.04

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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.