Home / 317,333.08-476,124.09-139,715.50

Finding the Fourth Proportional to 317,333.08, 476,124.09 and 139,715.50

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Solution

The fourth proportional to 317,333.08, 476,124.09 and 139,715.50 is: 209,628.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,333.08 : 476,124.09 = 139,715.50 : x
  2. Step 2: Convert to fraction form
    317,333.08/476,124.09 = 139,715.50/x
  3. Step 3: Cross multiply
    317,333.08x = 476,124.09 × 139,715.50
  4. Step 4: Simplify right side
    317,333.08x = 66,521,915,296.40
  5. Step 5: Solve for x
    x = 66,521,915,296.40/317,333.08
  6. Step 6: Final answer
    x = 209,628.05

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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.