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Finding the Fourth Proportional to 160,215.60, 240,064.20 and 100,945.20

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Solution

The fourth proportional to 160,215.60, 240,064.20 and 100,945.20 is: 151,254.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,215.60 : 240,064.20 = 100,945.20 : x
  2. Step 2: Convert to fraction form
    160,215.60/240,064.20 = 100,945.20/x
  3. Step 3: Cross multiply
    160,215.60x = 240,064.20 × 100,945.20
  4. Step 4: Simplify right side
    160,215.60x = 24,233,328,681.84
  5. Step 5: Solve for x
    x = 24,233,328,681.84/160,215.60
  6. Step 6: Final answer
    x = 151,254.49

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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.