Home / 467,920.19-645,729.87-253,060.20

Finding the Fourth Proportional to 467,920.19, 645,729.87 and 253,060.20

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Solution

The fourth proportional to 467,920.19, 645,729.87 and 253,060.20 is: 349,223.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,920.19 : 645,729.87 = 253,060.20 : x
  2. Step 2: Convert to fraction form
    467,920.19/645,729.87 = 253,060.20/x
  3. Step 3: Cross multiply
    467,920.19x = 645,729.87 × 253,060.20
  4. Step 4: Simplify right side
    467,920.19x = 163,408,530,997.15
  5. Step 5: Solve for x
    x = 163,408,530,997.15/467,920.19
  6. Step 6: Final answer
    x = 349,223.08

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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.