Home / 330,475.06-456,054.46-187,262.40

Finding the Fourth Proportional to 330,475.06, 456,054.46 and 187,262.40

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Solution

The fourth proportional to 330,475.06, 456,054.46 and 187,262.40 is: 258,421.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,475.06 : 456,054.46 = 187,262.40 : x
  2. Step 2: Convert to fraction form
    330,475.06/456,054.46 = 187,262.40/x
  3. Step 3: Cross multiply
    330,475.06x = 456,054.46 × 187,262.40
  4. Step 4: Simplify right side
    330,475.06x = 85,401,852,710.30
  5. Step 5: Solve for x
    x = 85,401,852,710.30/330,475.06
  6. Step 6: Final answer
    x = 258,421.48

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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.