Home / 211,516.80-317,275.20-161,750.40

Finding the Fourth Proportional to 211,516.80, 317,275.20 and 161,750.40

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Solution

The fourth proportional to 211,516.80, 317,275.20 and 161,750.40 is: 242,625.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,516.80 : 317,275.20 = 161,750.40 : x
  2. Step 2: Convert to fraction form
    211,516.80/317,275.20 = 161,750.40/x
  3. Step 3: Cross multiply
    211,516.80x = 317,275.20 × 161,750.40
  4. Step 4: Simplify right side
    211,516.80x = 51,319,390,510.08
  5. Step 5: Solve for x
    x = 51,319,390,510.08/211,516.80
  6. Step 6: Final answer
    x = 242,625.60

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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.