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Finding the Fourth Proportional to 145,856.70, 218,266.65 and 101,274.30

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Solution

The fourth proportional to 145,856.70, 218,266.65 and 101,274.30 is: 151,551.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,856.70 : 218,266.65 = 101,274.30 : x
  2. Step 2: Convert to fraction form
    145,856.70/218,266.65 = 101,274.30/x
  3. Step 3: Cross multiply
    145,856.70x = 218,266.65 × 101,274.30
  4. Step 4: Simplify right side
    145,856.70x = 22,104,802,192.10
  5. Step 5: Solve for x
    x = 22,104,802,192.10/145,856.70
  6. Step 6: Final answer
    x = 151,551.50

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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.