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Finding the Fourth Proportional to 160,211.40, 240,317.10 and 77,267.40

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Solution

The fourth proportional to 160,211.40, 240,317.10 and 77,267.40 is: 115,901.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,211.40 : 240,317.10 = 77,267.40 : x
  2. Step 2: Convert to fraction form
    160,211.40/240,317.10 = 77,267.40/x
  3. Step 3: Cross multiply
    160,211.40x = 240,317.10 × 77,267.40
  4. Step 4: Simplify right side
    160,211.40x = 18,568,677,492.54
  5. Step 5: Solve for x
    x = 18,568,677,492.54/160,211.40
  6. Step 6: Final answer
    x = 115,901.10

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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.