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Finding the Fourth Proportional to 187,855.80, 282,042.90 and 148,457.40

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Solution

The fourth proportional to 187,855.80, 282,042.90 and 148,457.40 is: 222,890.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,855.80 : 282,042.90 = 148,457.40 : x
  2. Step 2: Convert to fraction form
    187,855.80/282,042.90 = 148,457.40/x
  3. Step 3: Cross multiply
    187,855.80x = 282,042.90 × 148,457.40
  4. Step 4: Simplify right side
    187,855.80x = 41,871,355,622.46
  5. Step 5: Solve for x
    x = 41,871,355,622.46/187,855.80
  6. Step 6: Final answer
    x = 222,890.94

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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.