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Finding the Fourth Proportional to 247,045.35, 340,797.37 and 156,248.40

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Solution

The fourth proportional to 247,045.35, 340,797.37 and 156,248.40 is: 215,543.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,045.35 : 340,797.37 = 156,248.40 : x
  2. Step 2: Convert to fraction form
    247,045.35/340,797.37 = 156,248.40/x
  3. Step 3: Cross multiply
    247,045.35x = 340,797.37 × 156,248.40
  4. Step 4: Simplify right side
    247,045.35x = 53,249,043,786.71
  5. Step 5: Solve for x
    x = 53,249,043,786.71/247,045.35
  6. Step 6: Final answer
    x = 215,543.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.