Home / 346,921.08-520,417.32-130,961.71

Finding the Fourth Proportional to 346,921.08, 520,417.32 and 130,961.71

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Solution

The fourth proportional to 346,921.08, 520,417.32 and 130,961.71 is: 196,456.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,921.08 : 520,417.32 = 130,961.71 : x
  2. Step 2: Convert to fraction form
    346,921.08/520,417.32 = 130,961.71/x
  3. Step 3: Cross multiply
    346,921.08x = 520,417.32 × 130,961.71
  4. Step 4: Simplify right side
    346,921.08x = 68,154,742,140.82
  5. Step 5: Solve for x
    x = 68,154,742,140.82/346,921.08
  6. Step 6: Final answer
    x = 196,456.04

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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.