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Finding the Fourth Proportional to 201,128.80, 301,693.20 and 60,894.40

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Solution

The fourth proportional to 201,128.80, 301,693.20 and 60,894.40 is: 91,341.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,128.80 : 301,693.20 = 60,894.40 : x
  2. Step 2: Convert to fraction form
    201,128.80/301,693.20 = 60,894.40/x
  3. Step 3: Cross multiply
    201,128.80x = 301,693.20 × 60,894.40
  4. Step 4: Simplify right side
    201,128.80x = 18,371,426,398.08
  5. Step 5: Solve for x
    x = 18,371,426,398.08/201,128.80
  6. Step 6: Final answer
    x = 91,341.60

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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.