Home / 217,535.32-326,289.81-129,350.01

Finding the Fourth Proportional to 217,535.32, 326,289.81 and 129,350.01

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Solution

The fourth proportional to 217,535.32, 326,289.81 and 129,350.01 is: 194,017.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,535.32 : 326,289.81 = 129,350.01 : x
  2. Step 2: Convert to fraction form
    217,535.32/326,289.81 = 129,350.01/x
  3. Step 3: Cross multiply
    217,535.32x = 326,289.81 × 129,350.01
  4. Step 4: Simplify right side
    217,535.32x = 42,205,590,186.40
  5. Step 5: Solve for x
    x = 42,205,590,186.40/217,535.32
  6. Step 6: Final answer
    x = 194,017.19

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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.