Home / 203,511.52-305,267.30-70,319.13

Finding the Fourth Proportional to 203,511.52, 305,267.30 and 70,319.13

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Solution

The fourth proportional to 203,511.52, 305,267.30 and 70,319.13 is: 105,478.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,511.52 : 305,267.30 = 70,319.13 : x
  2. Step 2: Convert to fraction form
    203,511.52/305,267.30 = 70,319.13/x
  3. Step 3: Cross multiply
    203,511.52x = 305,267.30 × 70,319.13
  4. Step 4: Simplify right side
    203,511.52x = 21,466,130,953.45
  5. Step 5: Solve for x
    x = 21,466,130,953.45/203,511.52
  6. Step 6: Final answer
    x = 105,478.70

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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.