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Finding the Fourth Proportional to 201,673.90, 302,510.85 and 83,430.10

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Solution

The fourth proportional to 201,673.90, 302,510.85 and 83,430.10 is: 125,145.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,673.90 : 302,510.85 = 83,430.10 : x
  2. Step 2: Convert to fraction form
    201,673.90/302,510.85 = 83,430.10/x
  3. Step 3: Cross multiply
    201,673.90x = 302,510.85 × 83,430.10
  4. Step 4: Simplify right side
    201,673.90x = 25,238,510,466.59
  5. Step 5: Solve for x
    x = 25,238,510,466.59/201,673.90
  6. Step 6: Final answer
    x = 125,145.15

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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.