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Finding the Fourth Proportional to 201,699.60, 302,549.40 and 145,712.40

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Solution

The fourth proportional to 201,699.60, 302,549.40 and 145,712.40 is: 218,568.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,699.60 : 302,549.40 = 145,712.40 : x
  2. Step 2: Convert to fraction form
    201,699.60/302,549.40 = 145,712.40/x
  3. Step 3: Cross multiply
    201,699.60x = 302,549.40 × 145,712.40
  4. Step 4: Simplify right side
    201,699.60x = 44,085,199,192.56
  5. Step 5: Solve for x
    x = 44,085,199,192.56/201,699.60
  6. Step 6: Final answer
    x = 218,568.60

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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.