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Finding the Fourth Proportional to 160,513.60, 240,808.80 and 77,339.20

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Solution

The fourth proportional to 160,513.60, 240,808.80 and 77,339.20 is: 116,027.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,513.60 : 240,808.80 = 77,339.20 : x
  2. Step 2: Convert to fraction form
    160,513.60/240,808.80 = 77,339.20/x
  3. Step 3: Cross multiply
    160,513.60x = 240,808.80 × 77,339.20
  4. Step 4: Simplify right side
    160,513.60x = 18,623,959,944.96
  5. Step 5: Solve for x
    x = 18,623,959,944.96/160,513.60
  6. Step 6: Final answer
    x = 116,027.30

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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.