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Finding the Fourth Proportional to 310,045.40, 465,068.10 and 298,235.60

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Solution

The fourth proportional to 310,045.40, 465,068.10 and 298,235.60 is: 447,353.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,045.40 : 465,068.10 = 298,235.60 : x
  2. Step 2: Convert to fraction form
    310,045.40/465,068.10 = 298,235.60/x
  3. Step 3: Cross multiply
    310,045.40x = 465,068.10 × 298,235.60
  4. Step 4: Simplify right side
    310,045.40x = 138,699,863,844.36
  5. Step 5: Solve for x
    x = 138,699,863,844.36/310,045.40
  6. Step 6: Final answer
    x = 447,353.40

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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.