Home / 346,940.28-478,857.69-225,870.93

Finding the Fourth Proportional to 346,940.28, 478,857.69 and 225,870.93

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Solution

The fourth proportional to 346,940.28, 478,857.69 and 225,870.93 is: 311,754.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,940.28 : 478,857.69 = 225,870.93 : x
  2. Step 2: Convert to fraction form
    346,940.28/478,857.69 = 225,870.93/x
  3. Step 3: Cross multiply
    346,940.28x = 478,857.69 × 225,870.93
  4. Step 4: Simplify right side
    346,940.28x = 108,160,031,777.95
  5. Step 5: Solve for x
    x = 108,160,031,777.95/346,940.28
  6. Step 6: Final answer
    x = 311,754.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.