Home / 210,011.09-315,017.78-52,239.55

Finding the Fourth Proportional to 210,011.09, 315,017.78 and 52,239.55

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Solution

The fourth proportional to 210,011.09, 315,017.78 and 52,239.55 is: 78,359.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,011.09 : 315,017.78 = 52,239.55 : x
  2. Step 2: Convert to fraction form
    210,011.09/315,017.78 = 52,239.55/x
  3. Step 3: Cross multiply
    210,011.09x = 315,017.78 × 52,239.55
  4. Step 4: Simplify right side
    210,011.09x = 16,456,385,232.91
  5. Step 5: Solve for x
    x = 16,456,385,232.91/210,011.09
  6. Step 6: Final answer
    x = 78,359.60

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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.