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Finding the Fourth Proportional to 145,164.28, 217,746.34 and 45,333.03

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Solution

The fourth proportional to 145,164.28, 217,746.34 and 45,333.03 is: 67,999.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,164.28 : 217,746.34 = 45,333.03 : x
  2. Step 2: Convert to fraction form
    145,164.28/217,746.34 = 45,333.03/x
  3. Step 3: Cross multiply
    145,164.28x = 217,746.34 × 45,333.03
  4. Step 4: Simplify right side
    145,164.28x = 9,871,101,363.61
  5. Step 5: Solve for x
    x = 9,871,101,363.61/145,164.28
  6. Step 6: Final answer
    x = 67,999.52

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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.