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Finding the Fourth Proportional to 208,024.70, 312,037.05 and 83,455.10

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Solution

The fourth proportional to 208,024.70, 312,037.05 and 83,455.10 is: 125,182.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,024.70 : 312,037.05 = 83,455.10 : x
  2. Step 2: Convert to fraction form
    208,024.70/312,037.05 = 83,455.10/x
  3. Step 3: Cross multiply
    208,024.70x = 312,037.05 × 83,455.10
  4. Step 4: Simplify right side
    208,024.70x = 26,041,083,211.46
  5. Step 5: Solve for x
    x = 26,041,083,211.46/208,024.70
  6. Step 6: Final answer
    x = 125,182.65

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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.