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Finding the Fourth Proportional to 608,875.80, 913,313.70 and 188,280.60

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Solution

The fourth proportional to 608,875.80, 913,313.70 and 188,280.60 is: 282,420.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,875.80 : 913,313.70 = 188,280.60 : x
  2. Step 2: Convert to fraction form
    608,875.80/913,313.70 = 188,280.60/x
  3. Step 3: Cross multiply
    608,875.80x = 913,313.70 × 188,280.60
  4. Step 4: Simplify right side
    608,875.80x = 171,959,251,424.22
  5. Step 5: Solve for x
    x = 171,959,251,424.22/608,875.80
  6. Step 6: Final answer
    x = 282,420.90

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Similar ratio
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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.