Home / 317,931.20-476,205.60-193,054.40

Finding the Fourth Proportional to 317,931.20, 476,205.60 and 193,054.40

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Solution

The fourth proportional to 317,931.20, 476,205.60 and 193,054.40 is: 289,161.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,931.20 : 476,205.60 = 193,054.40 : x
  2. Step 2: Convert to fraction form
    317,931.20/476,205.60 = 193,054.40/x
  3. Step 3: Cross multiply
    317,931.20x = 476,205.60 × 193,054.40
  4. Step 4: Simplify right side
    317,931.20x = 91,933,586,384.64
  5. Step 5: Solve for x
    x = 91,933,586,384.64/317,931.20
  6. Step 6: Final answer
    x = 289,161.89

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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.