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Finding the Fourth Proportional to 160,430.56, 240,574.75 and 85,536.75

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Solution

The fourth proportional to 160,430.56, 240,574.75 and 85,536.75 is: 128,267.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,430.56 : 240,574.75 = 85,536.75 : x
  2. Step 2: Convert to fraction form
    160,430.56/240,574.75 = 85,536.75/x
  3. Step 3: Cross multiply
    160,430.56x = 240,574.75 × 85,536.75
  4. Step 4: Simplify right side
    160,430.56x = 20,577,982,247.06
  5. Step 5: Solve for x
    x = 20,577,982,247.06/160,430.56
  6. Step 6: Final answer
    x = 128,267.22

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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.