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Finding the Fourth Proportional to 237,040.40, 355,560.60 and 217,686.80

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Solution

The fourth proportional to 237,040.40, 355,560.60 and 217,686.80 is: 326,530.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,040.40 : 355,560.60 = 217,686.80 : x
  2. Step 2: Convert to fraction form
    237,040.40/355,560.60 = 217,686.80/x
  3. Step 3: Cross multiply
    237,040.40x = 355,560.60 × 217,686.80
  4. Step 4: Simplify right side
    237,040.40x = 77,400,849,220.08
  5. Step 5: Solve for x
    x = 77,400,849,220.08/237,040.40
  6. Step 6: Final answer
    x = 326,530.20

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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.