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Finding the Fourth Proportional to 348,235.44, 480,316.08 and 319,645.92

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Solution

The fourth proportional to 348,235.44, 480,316.08 and 319,645.92 is: 440,882.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,235.44 : 480,316.08 = 319,645.92 : x
  2. Step 2: Convert to fraction form
    348,235.44/480,316.08 = 319,645.92/x
  3. Step 3: Cross multiply
    348,235.44x = 480,316.08 × 319,645.92
  4. Step 4: Simplify right side
    348,235.44x = 153,531,075,282.39
  5. Step 5: Solve for x
    x = 153,531,075,282.39/348,235.44
  6. Step 6: Final answer
    x = 440,882.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.