Home / 346,830.31-520,287.11-122,144.28

Finding the Fourth Proportional to 346,830.31, 520,287.11 and 122,144.28

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Solution

The fourth proportional to 346,830.31, 520,287.11 and 122,144.28 is: 183,231.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,830.31 : 520,287.11 = 122,144.28 : x
  2. Step 2: Convert to fraction form
    346,830.31/520,287.11 = 122,144.28/x
  3. Step 3: Cross multiply
    346,830.31x = 520,287.11 × 122,144.28
  4. Step 4: Simplify right side
    346,830.31x = 63,550,094,444.23
  5. Step 5: Solve for x
    x = 63,550,094,444.23/346,830.31
  6. Step 6: Final answer
    x = 183,231.09

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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.