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Finding the Fourth Proportional to 608,947.60, 913,421.40 and 188,222.80

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Solution

The fourth proportional to 608,947.60, 913,421.40 and 188,222.80 is: 282,334.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,947.60 : 913,421.40 = 188,222.80 : x
  2. Step 2: Convert to fraction form
    608,947.60/913,421.40 = 188,222.80/x
  3. Step 3: Cross multiply
    608,947.60x = 913,421.40 × 188,222.80
  4. Step 4: Simplify right side
    608,947.60x = 171,926,733,487.92
  5. Step 5: Solve for x
    x = 171,926,733,487.92/608,947.60
  6. Step 6: Final answer
    x = 282,334.20

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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.