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Finding the Fourth Proportional to 201,705.10, 302,557.65 and 83,607.10

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Solution

The fourth proportional to 201,705.10, 302,557.65 and 83,607.10 is: 125,410.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,705.10 : 302,557.65 = 83,607.10 : x
  2. Step 2: Convert to fraction form
    201,705.10/302,557.65 = 83,607.10/x
  3. Step 3: Cross multiply
    201,705.10x = 302,557.65 × 83,607.10
  4. Step 4: Simplify right side
    201,705.10x = 25,295,967,699.32
  5. Step 5: Solve for x
    x = 25,295,967,699.32/201,705.10
  6. Step 6: Final answer
    x = 125,410.65

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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.