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Finding the Fourth Proportional to 210,011.84, 315,018.90 and 52,240.30

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Solution

The fourth proportional to 210,011.84, 315,018.90 and 52,240.30 is: 78,360.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,011.84 : 315,018.90 = 52,240.30 : x
  2. Step 2: Convert to fraction form
    210,011.84/315,018.90 = 52,240.30/x
  3. Step 3: Cross multiply
    210,011.84x = 315,018.90 × 52,240.30
  4. Step 4: Simplify right side
    210,011.84x = 16,456,680,266.58
  5. Step 5: Solve for x
    x = 16,456,680,266.58/210,011.84
  6. Step 6: Final answer
    x = 78,360.73

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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.