Home / 208,234.40-312,312.20-101,511.23

Finding the Fourth Proportional to 208,234.40, 312,312.20 and 101,511.23

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Solution

The fourth proportional to 208,234.40, 312,312.20 and 101,511.23 is: 152,247.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,234.40 : 312,312.20 = 101,511.23 : x
  2. Step 2: Convert to fraction form
    208,234.40/312,312.20 = 101,511.23/x
  3. Step 3: Cross multiply
    208,234.40x = 312,312.20 × 101,511.23
  4. Step 4: Simplify right side
    208,234.40x = 31,703,195,058.45
  5. Step 5: Solve for x
    x = 31,703,195,058.45/208,234.40
  6. Step 6: Final answer
    x = 152,247.64

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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.