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Finding the Fourth Proportional to 245,585.40, 368,378.10 and 216,060.90

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Solution

The fourth proportional to 245,585.40, 368,378.10 and 216,060.90 is: 324,091.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,585.40 : 368,378.10 = 216,060.90 : x
  2. Step 2: Convert to fraction form
    245,585.40/368,378.10 = 216,060.90/x
  3. Step 3: Cross multiply
    245,585.40x = 368,378.10 × 216,060.90
  4. Step 4: Simplify right side
    245,585.40x = 79,592,103,826.29
  5. Step 5: Solve for x
    x = 79,592,103,826.29/245,585.40
  6. Step 6: Final answer
    x = 324,091.35

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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.