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Finding the Fourth Proportional to 319,073.10, 479,322.45 and 266,585.10

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Solution

The fourth proportional to 319,073.10, 479,322.45 and 266,585.10 is: 400,473.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,073.10 : 479,322.45 = 266,585.10 : x
  2. Step 2: Convert to fraction form
    319,073.10/479,322.45 = 266,585.10/x
  3. Step 3: Cross multiply
    319,073.10x = 479,322.45 × 266,585.10
  4. Step 4: Simplify right side
    319,073.10x = 127,780,223,265.50
  5. Step 5: Solve for x
    x = 127,780,223,265.50/319,073.10
  6. Step 6: Final answer
    x = 400,473.19

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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.