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Finding the Fourth Proportional to 181,378.80, 272,068.20 and 70,570.80

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Solution

The fourth proportional to 181,378.80, 272,068.20 and 70,570.80 is: 105,856.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,378.80 : 272,068.20 = 70,570.80 : x
  2. Step 2: Convert to fraction form
    181,378.80/272,068.20 = 70,570.80/x
  3. Step 3: Cross multiply
    181,378.80x = 272,068.20 × 70,570.80
  4. Step 4: Simplify right side
    181,378.80x = 19,200,070,528.56
  5. Step 5: Solve for x
    x = 19,200,070,528.56/181,378.80
  6. Step 6: Final answer
    x = 105,856.20

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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.