Home / 317,887.32-476,725.68-128,298.72

Finding the Fourth Proportional to 317,887.32, 476,725.68 and 128,298.72

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Solution

The fourth proportional to 317,887.32, 476,725.68 and 128,298.72 is: 192,405.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,887.32 : 476,725.68 = 128,298.72 : x
  2. Step 2: Convert to fraction form
    317,887.32/476,725.68 = 128,298.72/x
  3. Step 3: Cross multiply
    317,887.32x = 476,725.68 × 128,298.72
  4. Step 4: Simplify right side
    317,887.32x = 61,163,294,535.13
  5. Step 5: Solve for x
    x = 61,163,294,535.13/317,887.32
  6. Step 6: Final answer
    x = 192,405.58

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1.5x scale

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.