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Finding the Fourth Proportional to 201,688.10, 302,532.15 and 145,700.90

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Solution

The fourth proportional to 201,688.10, 302,532.15 and 145,700.90 is: 218,551.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,688.10 : 302,532.15 = 145,700.90 : x
  2. Step 2: Convert to fraction form
    201,688.10/302,532.15 = 145,700.90/x
  3. Step 3: Cross multiply
    201,688.10x = 302,532.15 × 145,700.90
  4. Step 4: Simplify right side
    201,688.10x = 44,079,206,533.94
  5. Step 5: Solve for x
    x = 44,079,206,533.94/201,688.10
  6. Step 6: Final answer
    x = 218,551.35

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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.