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Finding the Fourth Proportional to 272,030.40, 408,045.60 and 270,280.80

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Solution

The fourth proportional to 272,030.40, 408,045.60 and 270,280.80 is: 405,421.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,030.40 : 408,045.60 = 270,280.80 : x
  2. Step 2: Convert to fraction form
    272,030.40/408,045.60 = 270,280.80/x
  3. Step 3: Cross multiply
    272,030.40x = 408,045.60 × 270,280.80
  4. Step 4: Simplify right side
    272,030.40x = 110,286,891,204.48
  5. Step 5: Solve for x
    x = 110,286,891,204.48/272,030.40
  6. Step 6: Final answer
    x = 405,421.20

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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.