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Finding the Fourth Proportional to 201,495.40, 302,243.10 and 83,127.40

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Solution

The fourth proportional to 201,495.40, 302,243.10 and 83,127.40 is: 124,691.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,495.40 : 302,243.10 = 83,127.40 : x
  2. Step 2: Convert to fraction form
    201,495.40/302,243.10 = 83,127.40/x
  3. Step 3: Cross multiply
    201,495.40x = 302,243.10 × 83,127.40
  4. Step 4: Simplify right side
    201,495.40x = 25,124,683,070.94
  5. Step 5: Solve for x
    x = 25,124,683,070.94/201,495.40
  6. Step 6: Final answer
    x = 124,691.10

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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.