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Finding the Fourth Proportional to 319,952.88, 480,018.32 and 140,006.24

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Solution

The fourth proportional to 319,952.88, 480,018.32 and 140,006.24 is: 210,048.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,952.88 : 480,018.32 = 140,006.24 : x
  2. Step 2: Convert to fraction form
    319,952.88/480,018.32 = 140,006.24/x
  3. Step 3: Cross multiply
    319,952.88x = 480,018.32 × 140,006.24
  4. Step 4: Simplify right side
    319,952.88x = 67,205,560,114.32
  5. Step 5: Solve for x
    x = 67,205,560,114.32/319,952.88
  6. Step 6: Final answer
    x = 210,048.30

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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.